diff --git a/faberge/sections/01/music.py b/faberge/sections/01/music.py
index 82170ce69..20163a481 100644
--- a/faberge/sections/01/music.py
+++ b/faberge/sections/01/music.py
@@ -125,14 +125,14 @@ def eh(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-ratchet-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(6),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(6),
         )
         baca.dynamic(
             o.phead(0),
             "(f)",
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-2, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-2, 0)),
         )
         baca.override.dls_staff_padding(o, 8.5)
 
diff --git a/faberge/sections/02/music.py b/faberge/sections/02/music.py
index 6151510ba..889eebb06 100644
--- a/faberge/sections/02/music.py
+++ b/faberge/sections/02/music.py
@@ -42,19 +42,19 @@ def GLOBALS(skips):
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "A",
-        baca.postevent.extra_offset((0, 9)),
+        baca.tweak.extra_offset((0, 9)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_PARTS)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "A",
-        baca.postevent.extra_offset((0, 6)),
+        baca.tweak.extra_offset((0, 6)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SCORE)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "A",
-        baca.postevent.extra_offset((0, 18)),
+        baca.tweak.extra_offset((0, 18)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SECTION)
 
@@ -331,7 +331,7 @@ def fl(m):
         baca.markup(
             o.pleaf(0),
             r"\faberge-match-sound-of-crotales-markup",
-            baca.postevent.padding(1.5),
+            baca.tweak.padding(1.5),
         )
     with baca.scope(m.get(13, 26)) as o:
         baca.pitch(o, "F6")
@@ -361,7 +361,7 @@ def fl(m):
         baca.markup(
             o.mmrest(0),
             r"\baca-boxed-to-bass-flute-markup",
-            baca.postevent.padding(1.5),
+            baca.tweak.padding(1.5),
         )
         baca.instrument(o.leaf(0), "BassFlute", library.manifests)
         baca.short_instrument_name(o.leaf(0), "B. fl.", library.manifests)
@@ -382,8 +382,8 @@ def fl(m):
         baca.pitches(o, "F#4 F#3", allow_repeats=True)
         library.bfl_color_fingerings(
             o.pheads(),
-            baca.postevent.parent_alignment_x(-0.5),
-            baca.postevent.staff_padding(3.5),
+            baca.tweak.parent_alignment_x(-0.5),
+            baca.tweak.staff_padding(3.5),
         )
         baca.hairpin(
             o.tleaves()[:1],
@@ -408,7 +408,7 @@ def eh(m):
         for run in baca.select.runs(o):
             baca.spanners.trill(
                 run,
-                baca.postevent.bound_details_right_padding(2),
+                baca.tweak.bound_details_right_padding(2),
                 rleak=True,
             )
     with baca.scope(m.get(27, 30)) as o:
@@ -417,7 +417,7 @@ def eh(m):
         for run in baca.select.runs(o):
             baca.spanners.trill(
                 run,
-                baca.postevent.bound_details_right_padding(2),
+                baca.tweak.bound_details_right_padding(2),
                 rleak=True,
             )
     with baca.scope(m.get(41, 46)) as o:
@@ -426,7 +426,7 @@ def eh(m):
         for run in baca.select.runs(o):
             baca.spanners.trill(
                 run,
-                baca.postevent.bound_details_right_padding(2),
+                baca.tweak.bound_details_right_padding(2),
                 rleak=True,
             )
     with baca.scope(m.get(57, 62)) as o:
@@ -435,7 +435,7 @@ def eh(m):
         for run in baca.select.runs(o):
             baca.spanners.trill(
                 run,
-                baca.postevent.bound_details_right_padding(2),
+                baca.tweak.bound_details_right_padding(2),
                 rleak=True,
             )
     with baca.scope(m.get(81, 88)) as o:
@@ -444,7 +444,7 @@ def eh(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-keynoise-markup",
-            baca.postevent.padding(1.5),
+            baca.tweak.padding(1.5),
         ),
         baca.dynamic(o.phead(0), '"ff"')
     with baca.scope(m.get(89, 92)) as o:
@@ -453,7 +453,7 @@ def eh(m):
         for run in baca.select.runs(o):
             baca.spanners.trill(
                 run,
-                baca.postevent.bound_details_right_padding(2),
+                baca.tweak.bound_details_right_padding(2),
                 rleak=True,
             )
         baca.dynamic(o.phead(0), "f")
@@ -468,7 +468,7 @@ def cl(m):
         baca.markup(
             o.pleaf(0),
             r"\faberge-match-sound-of-crotales-markup",
-            baca.postevent.padding(1.5),
+            baca.tweak.padding(1.5),
         )
         baca.pitch(o, "F#6")
         library.dal_niente_hairpins(o, "f")
@@ -498,7 +498,7 @@ def cl(m):
         baca.markup(
             o.mmrest(0),
             r"\baca-boxed-to-bass-clarinet-markup",
-            baca.postevent.padding(1.5),
+            baca.tweak.padding(1.5),
         )
     with baca.scope(m.get(47, 92)) as o:
         baca.override.dls_staff_padding(o, 8)
@@ -629,13 +629,13 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-castanets-markup",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
         )
         baca.staff_position(o, 1)
         baca.override.stem_direction_up(o.pleaves())
         baca.spanners.trill(
             baca.select.tleaves(o),
-            baca.postevent.bound_details_right_padding(2),
+            baca.tweak.bound_details_right_padding(2),
             rleak=True,
         )
     with baca.scope(m[87]) as o:
@@ -645,8 +645,8 @@ def perc(m):
         baca.markup(
             o.plt(-1),
             r"\baca-boxed-bd-struck-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
         baca.staff_position(o, -1)
         baca.override.stem_direction_down(o.pleaves())
@@ -658,7 +658,7 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-crotales-bowed-markup",
-            baca.postevent.staff_padding(6),
+            baca.tweak.staff_padding(6),
         )
         library.dal_niente_hairpins(o, "f")
     with baca.scope(m.get(1, 80)) as o:
@@ -667,8 +667,8 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-crotales-bowed-markup",
-            baca.postevent.extra_offset((-6, 0)),
-            baca.postevent.staff_padding(6),
+            baca.tweak.extra_offset((-6, 0)),
+            baca.tweak.staff_padding(6),
         )
 
 
@@ -679,7 +679,7 @@ def vn(m):
         baca.markup(
             o.pleaf(0),
             r"\faberge-match-sound-of-crotales-markup",
-            baca.postevent.padding(1.5),
+            baca.tweak.padding(1.5),
         )
         baca.pitch(o, "F#6")
         library.dal_niente_hairpins(o, "f")
@@ -888,8 +888,8 @@ def vc(m):
         baca.markup(
             o.pleaf(0),
             r"\faberge-poco-vib-sempre-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(5.5),
         )
     with baca.scope(m.get(1, 16)) as o:
         baca.hairpin(
@@ -938,7 +938,7 @@ def vc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-sub-non-vib-markup",
-            baca.postevent.padding(1.5),
+            baca.tweak.padding(1.5),
         )
     with baca.scope(m.get(71, 80)) as o:
         baca.spanners.scp(
diff --git a/faberge/sections/03/music.py b/faberge/sections/03/music.py
index e2f6ae626..0ce9e86f0 100644
--- a/faberge/sections/03/music.py
+++ b/faberge/sections/03/music.py
@@ -45,19 +45,19 @@ def GLOBALS(skips):
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "B",
-        baca.postevent.extra_offset((0, 9)),
+        baca.tweak.extra_offset((0, 9)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_PARTS)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "B",
-        baca.postevent.extra_offset((0, 14)),
+        baca.tweak.extra_offset((0, 14)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SCORE)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "B",
-        baca.postevent.extra_offset((0, 18)),
+        baca.tweak.extra_offset((0, 18)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SECTION)
 
@@ -371,8 +371,8 @@ def fl(m):
         )
         library.bfl_color_fingerings(
             o.pheads(),
-            baca.postevent.parent_alignment_x(-0.5),
-            baca.postevent.staff_padding(3.5),
+            baca.tweak.parent_alignment_x(-0.5),
+            baca.tweak.staff_padding(3.5),
         )
     with baca.scope(m.get(69, 72)) as o:
         baca.pitches(
@@ -383,8 +383,8 @@ def fl(m):
         baca.override.repeat_tie_extra_offset(o, (-1.5, 0))
         library.bfl_color_fingerings(
             o.pheads(),
-            baca.postevent.parent_alignment_x(-0.5),
-            baca.postevent.staff_padding(3.5),
+            baca.tweak.parent_alignment_x(-0.5),
+            baca.tweak.staff_padding(3.5),
         )
         library.swells(o, "ppp")
     with baca.scope(m.get(73, 80)) as o:
@@ -410,7 +410,7 @@ def eh(m):
         for run in baca.select.runs(o):
             baca.spanners.trill(
                 run,
-                baca.postevent.bound_details_right_padding(2),
+                baca.tweak.bound_details_right_padding(2),
                 rleak=True,
             )
     with baca.scope(m.get(23, 30)) as o:
@@ -422,7 +422,7 @@ def eh(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-doubletrill-markup",
-            baca.postevent.padding(1.5),
+            baca.tweak.padding(1.5),
         )
         baca.pitch(o, "Eb4")
         baca.override.repeat_tie_extra_offset(o, (-1.5, 0))
@@ -430,7 +430,7 @@ def eh(m):
         for run in baca.select.runs(o):
             baca.spanners.trill(
                 run,
-                baca.postevent.bound_details_right_padding(2),
+                baca.tweak.bound_details_right_padding(2),
                 rleak=True,
             )
     with baca.scope(m.get(37, 44)) as o:
@@ -442,7 +442,7 @@ def eh(m):
     with baca.scope(m.get(31, 44)) as o:
         baca.spanners.trill(
             baca.select.tleaves(o),
-            baca.postevent.bound_details_right_padding(2),
+            baca.tweak.bound_details_right_padding(2),
             rleak=True,
         )
     with baca.scope(m.get(1, 52)) as o:
@@ -462,14 +462,14 @@ def eh(m):
         baca.dynamic(
             o.phead(0),
             '"mf"',
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-2, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-2, 0)),
         )
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-airtone-markup",
-            baca.postevent.padding(1.5),
-            baca.postevent.parent_alignment_x(0),
+            baca.tweak.padding(1.5),
+            baca.tweak.parent_alignment_x(0),
         )
         baca.staff_position(o, 0)
     with baca.scope(m[79]) as o:
@@ -477,14 +477,14 @@ def eh(m):
         baca.dynamic(
             o.phead(0),
             "(f)",
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-2, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-2, 0)),
         )
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-ratchet-markup",
-            baca.postevent.padding(1.5),
-            baca.postevent.parent_alignment_x(0),
+            baca.tweak.padding(1.5),
+            baca.tweak.parent_alignment_x(0),
         )
         baca.staff_position(o, 0)
 
@@ -619,14 +619,14 @@ def pf(cache):
         baca.dynamic(
             o.phead(0),
             '"mf"',
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-2, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-2, 0)),
         )
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-tuning-pegs-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
     with baca.scope(m.get(53, 80)) as o:
         baca.override.beam_positions(o, -3)
@@ -658,7 +658,7 @@ def perc(cache):
         baca.markup(
             o.ptail(0),
             r"\baca-lv-possibile-markup",
-            baca.postevent.padding(1.5),
+            baca.tweak.padding(1.5),
         )
         baca.pitch(o, "G4")
     with baca.scope(m[1]) as o:
@@ -668,7 +668,7 @@ def perc(cache):
         baca.markup(
             o.mmrest(0),
             r"\baca-boxed-to-marimba-markup",
-            baca.postevent.staff_padding(6),
+            baca.tweak.staff_padding(6),
         )
     m = cache["perc"]
     with baca.scope(m.get(23, 48)) as o:
@@ -697,7 +697,7 @@ def perc(cache):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-marimba-attackless-markup",
-            baca.postevent.staff_padding(6),
+            baca.tweak.staff_padding(6),
         )
     with baca.scope(m.get(57, 60)) as o:
         baca.glissando(
@@ -719,14 +719,14 @@ def perc(cache):
         baca.dynamic(
             o.phead(0),
             '"mf"',
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-2, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-2, 0)),
         )
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-bd-sponge-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(6),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(6),
         )
         baca.staff_position(o, -1)
         baca.override.stem_direction_down(o.pleaves())
@@ -736,12 +736,12 @@ def perc(cache):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-woodblock-markup",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
         )
         baca.spanners.material_annotation(
             baca.select.ltleaves(o),
             "MM =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
             right_broken=True,
         )
@@ -755,7 +755,7 @@ def vn(m):
         baca.markup(
             o.ptail(0),
             r"\baca-lv-possibile-markup",
-            baca.postevent.padding(1.5),
+            baca.tweak.padding(1.5),
         )
         baca.pitch(o, "G6")
         library.dal_niente_hairpins(o, "ff")
@@ -809,14 +809,14 @@ def vn(m):
         baca.dynamic(
             o.phead(0),
             '("mf")',
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-2, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-2, 0)),
         )
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-ob-markup",
-            baca.postevent.padding(1.5),
-            baca.postevent.parent_alignment_x(0),
+            baca.tweak.padding(1.5),
+            baca.tweak.parent_alignment_x(0),
         )
         baca.staff_position(o, 0)
     with baca.scope(m.get(53, 68)) as o:
@@ -836,8 +836,8 @@ def vn(m):
         baca.dynamic(
             o.phead(0),
             '("mf")',
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-2, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-2, 0)),
         )
         baca.staccato(o.pheads())
         baca.override.stem_direction_down(o.pleaves())
@@ -978,7 +978,7 @@ def vc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-non-vib-markup",
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.staff_padding(5.5),
         )
         baca.spanners.scp(
             baca.select.mgroups(baca.select.ltleaves(o), [12, 12]),
diff --git a/faberge/sections/04/music.py b/faberge/sections/04/music.py
index 12177eea8..106d40b68 100644
--- a/faberge/sections/04/music.py
+++ b/faberge/sections/04/music.py
@@ -34,19 +34,19 @@ def GLOBALS(skips):
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "C",
-        baca.postevent.extra_offset((0, 9)),
+        baca.tweak.extra_offset((0, 9)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_PARTS)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "C",
-        baca.postevent.extra_offset((0, 14)),
+        baca.tweak.extra_offset((0, 14)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SCORE)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "C",
-        baca.postevent.extra_offset((0, 18)),
+        baca.tweak.extra_offset((0, 18)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SECTION)
     for index, item in (
@@ -197,8 +197,8 @@ def fl(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-airtone-markup",
-            baca.postevent.padding(1.5),
-            baca.postevent.parent_alignment_x(0),
+            baca.tweak.padding(1.5),
+            baca.tweak.parent_alignment_x(0),
         )
     for n in [5, 6]:
         with baca.scope(m[n]) as o:
@@ -212,7 +212,7 @@ def fl(m):
         baca.spanners.material_annotation(
             baca.select.ltleaves(o),
             "1-1 / 1-2 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
 
@@ -223,7 +223,7 @@ def eh(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-airtone-markup",
-            baca.postevent.padding(1.5),
+            baca.tweak.padding(1.5),
         )
     for n in [5, 6]:
         with baca.scope(m[n]) as o:
@@ -236,7 +236,7 @@ def eh(m):
         baca.spanners.material_annotation(
             baca.select.ltleaves(o),
             "1-1 / 1-2 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
 
@@ -247,7 +247,7 @@ def cl(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-airtone-markup",
-            baca.postevent.padding(1.5),
+            baca.tweak.padding(1.5),
         )
     for n in [5, 6]:
         with baca.scope(m[n]) as o:
@@ -261,7 +261,7 @@ def cl(m):
         baca.spanners.material_annotation(
             baca.select.ltleaves(o),
             "1-1 / 1-2 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
 
@@ -294,8 +294,8 @@ def pf(cache):
         baca.spanners.material_annotation(
             o,
             "2-1 -|",
-            baca.postevent.color("#darkgreen"),
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.color("#darkgreen"),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
     with baca.scope(m.get(3, 5)) as o:
@@ -326,7 +326,7 @@ def perc(m):
         baca.spanners.material_annotation(
             o,
             "MM =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
     with baca.scope(m.get(4, 5)) as o:
@@ -335,7 +335,7 @@ def perc(m):
         baca.spanners.material_annotation(
             o,
             "MM =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
     with baca.scope(m[8]) as o:
@@ -343,7 +343,7 @@ def perc(m):
         baca.spanners.material_annotation(
             o,
             "MM =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             right_broken=True,
             rleak=True,
         )
@@ -373,7 +373,7 @@ def vn(m):
         baca.spanners.material_annotation(
             baca.select.ltleaves(o),
             "1-1 / 1-2 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
 
@@ -408,13 +408,13 @@ def va(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-ob-markup",
-            baca.postevent.padding(1.5),
-            baca.postevent.parent_alignment_x(0),
+            baca.tweak.padding(1.5),
+            baca.tweak.parent_alignment_x(0),
         )
         baca.spanners.material_annotation(
             baca.select.ltleaves(o),
             "1-1 / 1-2 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         ),
         baca.staff_position(o, 0)
@@ -428,7 +428,7 @@ def vc(m, metadata):
         baca.spanners.material_annotation(
             o,
             "1-1 / 1-2 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.override.note_head_style_harmonic(o.pleaves())
diff --git a/faberge/sections/05/music.py b/faberge/sections/05/music.py
index 07ddf6ffb..d7b9e8d78 100644
--- a/faberge/sections/05/music.py
+++ b/faberge/sections/05/music.py
@@ -35,19 +35,19 @@ def GLOBALS(skips, rests):
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "D",
-        baca.postevent.extra_offset((0, 9)),
+        baca.tweak.extra_offset((0, 9)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_PARTS)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "D",
-        baca.postevent.extra_offset((0, 14)),
+        baca.tweak.extra_offset((0, 14)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SCORE)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "D",
-        baca.postevent.extra_offset((0, 18)),
+        baca.tweak.extra_offset((0, 18)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SECTION)
     for index, item in (
@@ -194,7 +194,7 @@ def fl(m):
         baca.spanners.material_annotation(
             o.tleaves(),
             "1-3 / 1-4 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
 
@@ -204,7 +204,7 @@ def eh(m):
         baca.spanners.material_annotation(
             o.tleaves(),
             "1-3 / 1-4 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.staff_position(o, 0)
@@ -237,7 +237,7 @@ def cl(m):
         baca.spanners.material_annotation(
             o.tleaves(),
             "1-3 / 1-4 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
 
@@ -255,7 +255,7 @@ def fl_cl(cache):
                 )
                 baca.spanners.trill(
                     o.leaves()[:2],
-                    baca.postevent.bound_details_right_padding(2),
+                    baca.tweak.bound_details_right_padding(2),
                     rleak=True,
                 )
 
@@ -266,7 +266,7 @@ def perc(m):
         baca.spanners.material_annotation(
             o.tleaves(),
             "MM =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
     with baca.scope(m.get(3, 8)) as o:
@@ -277,8 +277,8 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-bd-rolled-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
         baca.override.stem_direction_down(o.pleaves())
         baca.stem_tremolo(abjad.select.get(baca.select.pheads(o), [0, -1]))
@@ -315,7 +315,7 @@ def vn(m):
         baca.spanners.material_annotation(
             o,
             "1-3 / 1-4 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
 
@@ -350,7 +350,7 @@ def va(m):
         baca.spanners.material_annotation(
             o,
             "1-3 / 1-4 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
 
@@ -417,7 +417,7 @@ def vc(m, metadata):
         baca.spanners.material_annotation(
             o,
             "1-3 / 1-4 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
 
diff --git a/faberge/sections/06/music.py b/faberge/sections/06/music.py
index 1ac319228..ce3905642 100644
--- a/faberge/sections/06/music.py
+++ b/faberge/sections/06/music.py
@@ -34,19 +34,19 @@ def GLOBALS(skips, rests, first_measure_number):
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "E",
-        baca.postevent.extra_offset((0, 9)),
+        baca.tweak.extra_offset((0, 9)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_PARTS)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "E",
-        baca.postevent.extra_offset((0, 14)),
+        baca.tweak.extra_offset((0, 14)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SCORE)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "E",
-        baca.postevent.extra_offset((0, 18)),
+        baca.tweak.extra_offset((0, 18)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SECTION)
     for index, item in (
@@ -225,7 +225,7 @@ def fl(m):
         baca.hairpin(
             baca.select.clparts(o, [1]),
             "o< mf>o !o< mf>o!",
-            (baca.postevent.to_bar_line_true(), -1),
+            (baca.tweak.to_bar_line_true(), -1),
             rleak=True,
         )
         baca.pitch(o, "F5")
@@ -234,8 +234,8 @@ def fl(m):
         baca.spanners.material_annotation(
             o,
             "5-2 -|",
-            baca.postevent.color("#darkgreen"),
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.color("#darkgreen"),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
     for n in [4, 5]:
@@ -249,7 +249,7 @@ def fl(m):
         baca.spanners.material_annotation(
             o,
             "1-5 / 2-1 =|",
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
     for n in [6, 7, 8]:
@@ -283,7 +283,7 @@ def cl(m):
         baca.spanners.material_annotation(
             o,
             "1-5 / 2-1 =|",
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
 
@@ -305,7 +305,7 @@ def fl_cl(cache):
                 )
                 baca.spanners.trill(
                     o.leaves()[:2],
-                    baca.postevent.bound_details_right_padding(2),
+                    baca.tweak.bound_details_right_padding(2),
                     rleak=True,
                 )
 
@@ -321,14 +321,14 @@ def pf(cache):
         baca.dynamic(
             o.phead(0),
             '"mf"',
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-2, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-2, 0)),
         )
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-tuning-pegs-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         ),
         baca.override.note_head_stencil_false(o.pleaves())
         baca.override.tuplet_bracket_transparent(o)
@@ -340,8 +340,8 @@ def pf(cache):
         baca.dynamic(
             o.phead(0),
             "mp",
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-1, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-1, 0)),
         )
     with baca.scope(m.get(6, 8)) as o:
         baca.pitch(o, "G3:A3:C4")
@@ -353,7 +353,7 @@ def pf(cache):
         baca.spanners.material_annotation(
             o,
             "2-1 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
     with baca.scope(m.leaves()) as o:
@@ -377,8 +377,8 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-bd-struck-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
         baca.staff_position(o, -1)
         baca.override.stem_direction_down(o.pleaves())
@@ -388,8 +388,8 @@ def perc(m):
         baca.spanners.material_annotation(
             o,
             "A.2 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(10.5),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(10.5),
             rleak=True,
         )
     for n in [4, 5, 6, 7]:
@@ -398,7 +398,7 @@ def perc(m):
             for plt in baca.select.plts(o):
                 baca.spanners.trill(
                     plt,
-                    baca.postevent.bound_details_right_padding(2),
+                    baca.tweak.bound_details_right_padding(2),
                     rleak=True,
                 )
     with baca.scope(m[4]) as o:
@@ -406,8 +406,8 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-castanets-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
     with baca.scope(m[8]) as o:
         baca.override.dls_staff_padding(o, 8)
@@ -415,8 +415,8 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-woodblock-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
         baca.staff_position(o, 0)
     with baca.scope(m.get(4, 7)) as o:
@@ -424,8 +424,8 @@ def perc(m):
         baca.spanners.material_annotation(
             o,
             "4-3 -|",
-            baca.postevent.color("#darkgreen"),
-            baca.postevent.staff_padding(10.5),
+            baca.tweak.color("#darkgreen"),
+            baca.tweak.staff_padding(10.5),
             rleak=True,
         ),
         baca.override.stem_direction_up(o.pleaves())
@@ -531,8 +531,8 @@ def composites(cache):
                 baca.spanners.material_annotation(
                     o,
                     "3-1 -|",
-                    baca.postevent.color("#darkgreen"),
-                    baca.postevent.staff_padding(8),
+                    baca.tweak.color("#darkgreen"),
+                    baca.tweak.staff_padding(8),
                     rleak=True,
                 )
                 plts = baca.select.plts(o)
@@ -547,14 +547,14 @@ def composites(cache):
             baca.dynamic(
                 o.phead(0),
                 '"mf"',
-                baca.postevent.x_extent_zero(),
-                baca.postevent.extra_offset((-2, 0)),
+                baca.tweak.x_extent_zero(),
+                baca.tweak.extra_offset((-2, 0)),
             )
             baca.spanners.material_annotation(
                 o,
                 "4-3 -|",
-                baca.postevent.color("#darkgreen"),
-                baca.postevent.staff_padding(10.5),
+                baca.tweak.color("#darkgreen"),
+                baca.tweak.staff_padding(10.5),
                 rleak=True,
             )
             baca.staccato(o.pheads())
diff --git a/faberge/sections/07/music.py b/faberge/sections/07/music.py
index 44fa7c728..0b96996ad 100644
--- a/faberge/sections/07/music.py
+++ b/faberge/sections/07/music.py
@@ -34,19 +34,19 @@ def GLOBALS(skips):
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "F",
-        baca.postevent.extra_offset((0, 9)),
+        baca.tweak.extra_offset((0, 9)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_PARTS)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "F",
-        baca.postevent.extra_offset((0, 14)),
+        baca.tweak.extra_offset((0, 14)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SCORE)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "F",
-        baca.postevent.extra_offset((0, 18)),
+        baca.tweak.extra_offset((0, 18)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SECTION)
     for index, item in (
@@ -239,7 +239,7 @@ def fl(m):
         baca.spanners.material_annotation(
             o,
             "2-2 =|",
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
     for n in [2, 4]:
@@ -253,8 +253,8 @@ def fl(m):
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "3-7 -|",
-            baca.postevent.color("#darkgreen"),
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.color("#darkgreen"),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
         baca.pitch(o, "F#3")
@@ -277,7 +277,7 @@ def eh(m):
             for plt in baca.select.plts(o):
                 baca.spanners.trill(
                     plt,
-                    baca.postevent.bound_details_right_padding(2),
+                    baca.tweak.bound_details_right_padding(2),
                     rleak=True,
                 )
     with baca.scope(m.get(4, 8)) as o:
@@ -297,7 +297,7 @@ def cl(m):
         baca.spanners.material_annotation(
             o,
             "2-2 =|",
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
     with baca.scope(m[5]) as o:
@@ -306,8 +306,8 @@ def cl(m):
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "3-7 -|",
-            baca.postevent.color("#darkgreen"),
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.color("#darkgreen"),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
 
@@ -327,7 +327,7 @@ def fl_cl(cache):
                 baca.glissando(o.pleaves()[2:4])
                 baca.spanners.trill(
                     o.leaves()[:2],
-                    baca.postevent.bound_details_right_padding(2),
+                    baca.tweak.bound_details_right_padding(2),
                     rleak=True,
                 )
         with baca.scope(m[4]) as o:
@@ -338,7 +338,7 @@ def fl_cl(cache):
         with baca.scope(m[5]) as o:
             baca.espressivo(
                 o.pheads(),
-                baca.postevent.x_extent_zero(tag=baca.tags.NOT_PARTS),
+                baca.tweak.x_extent_zero(tag=baca.tags.NOT_PARTS),
             )
             baca.hairpin(
                 abjad.select.partition_by_counts(
@@ -376,7 +376,7 @@ def pf(cache):
         baca.spanners.material_annotation(
             o,
             "2-2 / 2-3 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
     m = cache["lh"]
@@ -417,30 +417,30 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-castanets-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
         baca.staff_position(o, 1)
         baca.override.stem_direction_up(o.pleaves())
         for plt in baca.select.plts(o):
             baca.spanners.trill(
                 plt,
-                baca.postevent.bound_details_right_padding(2),
+                baca.tweak.bound_details_right_padding(2),
                 rleak=True,
             )
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "4-3 -|",
-            baca.postevent.color("#darkgreen"),
-            baca.postevent.staff_padding(10.5),
+            baca.tweak.color("#darkgreen"),
+            baca.tweak.staff_padding(10.5),
             rleak=True,
         )
     with baca.scope(m[5]) as o:
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-bd-superball-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
         baca.staff_position(o, -1)
         baca.override.stem_direction_down(o.pleaves())
@@ -452,8 +452,8 @@ def perc(m):
         baca.spanners.material_annotation(
             o,
             "3-7 -|",
-            baca.postevent.color("#darkgreen"),
-            baca.postevent.staff_padding(10.5),
+            baca.tweak.color("#darkgreen"),
+            baca.tweak.staff_padding(10.5),
             rleak=True,
         )
     with baca.scope(m.leaves()) as o:
@@ -473,8 +473,8 @@ def vn(m):
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "A.3 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
     with baca.scope(m[3]) as o:
@@ -482,8 +482,8 @@ def vn(m):
         baca.dynamic(
             o.phead(0),
             '"mf"',
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-2, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-2, 0)),
         )
     with baca.scope(m.get(3, 4)) as o:
         baca.spanners.beam(o.tleaves())
@@ -491,8 +491,8 @@ def vn(m):
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "4-3 -|",
-            baca.postevent.color("#darkgreen"),
-            baca.postevent.staff_padding(2.5 + 3 * 2.5),
+            baca.tweak.color("#darkgreen"),
+            baca.tweak.staff_padding(2.5 + 3 * 2.5),
             rleak=True,
         )
     with baca.scope(m.get(3, 7)) as o:
@@ -508,8 +508,8 @@ def vn(m):
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "4-2 -|",
-            baca.postevent.color("#darkgreen"),
-            baca.postevent.staff_padding(10.5),
+            baca.tweak.color("#darkgreen"),
+            baca.tweak.staff_padding(10.5),
             rleak=True,
         )
     with baca.scope(m.get(3, 8)) as o:
@@ -530,8 +530,8 @@ def va(m):
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "A.3 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
     with baca.scope(m[3]) as o:
@@ -539,8 +539,8 @@ def va(m):
         baca.dynamic(
             o.phead(0),
             '"mf"',
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-2, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-2, 0)),
         )
         baca.override.dls_staff_padding(o, 8)
     with baca.scope(m.get(3, 4)) as o:
@@ -556,8 +556,8 @@ def va(m):
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "4-3 -|",
-            baca.postevent.color("#darkgreen"),
-            baca.postevent.staff_padding(2.5 + 3 * 2.5),
+            baca.tweak.color("#darkgreen"),
+            baca.tweak.staff_padding(2.5 + 3 * 2.5),
             rleak=True,
         )
     with baca.scope(m[5]) as o:
@@ -574,8 +574,8 @@ def va(m):
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "3-7 -|",
-            baca.postevent.color("#darkgreen"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#darkgreen"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
     with baca.scope(m.get(6, 7)) as o:
@@ -585,8 +585,8 @@ def va(m):
         baca.dynamic(
             o.phead(0),
             '"mf"',
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-2, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-2, 0)),
         )
         baca.spanners.clb(
             baca.select.ltleaves(o),
@@ -597,8 +597,8 @@ def va(m):
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "4-2 -|",
-            baca.postevent.color("#darkgreen"),
-            baca.postevent.staff_padding(10.5),
+            baca.tweak.color("#darkgreen"),
+            baca.tweak.staff_padding(10.5),
             rleak=True,
         )
     with baca.scope(m.get(6, 8)) as o:
@@ -653,7 +653,7 @@ def vc(m):
         baca.spanners.material_annotation(
             o,
             "2-3 =|",
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
     for n in [5, 6, 7, 8]:
diff --git a/faberge/sections/08/music.py b/faberge/sections/08/music.py
index 3ff7d6e72..385306784 100644
--- a/faberge/sections/08/music.py
+++ b/faberge/sections/08/music.py
@@ -36,19 +36,19 @@ def GLOBALS(skips, rests, first_measure_number):
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "G",
-        baca.postevent.extra_offset((0, 9)),
+        baca.tweak.extra_offset((0, 9)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_PARTS)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "G",
-        baca.postevent.extra_offset((0, 14)),
+        baca.tweak.extra_offset((0, 14)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SCORE)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "G",
-        baca.postevent.extra_offset((0, 18)),
+        baca.tweak.extra_offset((0, 18)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SECTION)
     for index, item in (
@@ -223,7 +223,7 @@ def eh(m):
         for plt in baca.select.plts(o):
             baca.spanners.trill(
                 plt,
-                baca.postevent.bound_details_right_padding(2),
+                baca.tweak.bound_details_right_padding(2),
                 rleak=True,
             )
         baca.override.trill_spanner_staff_padding(o, 5.5)
@@ -233,14 +233,14 @@ def eh(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-airtone-markup",
-            baca.postevent.padding(1.5),
-            baca.postevent.parent_alignment_x(0),
+            baca.tweak.padding(1.5),
+            baca.tweak.parent_alignment_x(0),
         )
         baca.dynamic(
             o.phead(0),
             '"mf"',
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-2, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-2, 0)),
         )
         baca.override.dls_staff_padding(o, 6)
         baca.staff_lines(o.rleaf(-1), 5)
@@ -262,8 +262,8 @@ def fl_eh_cl(cache):
             baca.spanners.material_annotation(
                 baca.select.tleaves(o),
                 "1-2 -|",
-                baca.postevent.color("#red"),
-                baca.postevent.staff_padding(8),
+                baca.tweak.color("#red"),
+                baca.tweak.staff_padding(8),
                 rleak=True,
             )
 
@@ -283,14 +283,14 @@ def pf(cache):
         baca.spanners.material_annotation(
             o,
             "2-4 =|",
-            baca.postevent.staff_padding(10.5),
+            baca.tweak.staff_padding(10.5),
             rleak=True,
         )
     with baca.scope(m.get(6, 10)) as o:
         baca.spanners.material_annotation(
             o,
             "3-1 =|",
-            baca.postevent.staff_padding(10.5),
+            baca.tweak.staff_padding(10.5),
             rleak=True,
         )
     with baca.scope(m.leaves()) as o:
@@ -309,14 +309,14 @@ def pf(cache):
         baca.spanners.material_annotation(
             o,
             "2-4 =|",
-            baca.postevent.staff_padding(10.5),
+            baca.tweak.staff_padding(10.5),
             rleak=True,
         )
     with baca.scope(m.get(6, 10)) as o:
         baca.spanners.material_annotation(
             o,
             "3-1 =|",
-            baca.postevent.staff_padding(10.5),
+            baca.tweak.staff_padding(10.5),
             rleak=True,
         )
     for n in [1, 3, 4, 5, 6, 8, 9, 10]:
@@ -342,14 +342,14 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-castanets-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
         baca.staff_position(o, 1)
         baca.override.stem_direction_up(o.pleaves())
         baca.spanners.trill(
             baca.select.tleaves(o),
-            baca.postevent.bound_details_right_padding(2),
+            baca.tweak.bound_details_right_padding(2),
             rleak=True,
         )
     with baca.scope(m[3]) as o:
@@ -358,8 +358,8 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-bd-struck-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
         baca.laissez_vibrer(o.ptails())
         baca.dynamic(o.phead(0), "p")
@@ -367,8 +367,8 @@ def perc(m):
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "A.2 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(10.5),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(10.5),
             rleak=True,
         )
     with baca.scope(m.get(4, 5)) as o:
@@ -377,13 +377,13 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-bd-sponge-markup",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
         )
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "1-2 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(10.5),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(10.5),
             rleak=True,
         )
     with baca.scope(m.get(1, 5)) as o:
@@ -395,8 +395,8 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-marimba-attackless-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(6),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(6),
         )
         baca.dynamic(o.phead(0), "p")
         baca.override.dls_staff_padding(o, 4)
@@ -417,7 +417,7 @@ def vn(m):
         baca.spanners.material_annotation(
             o,
             "2-4 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
     with baca.scope(m.get(4, 5)) as o:
@@ -426,14 +426,14 @@ def vn(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-ob-markup",
-            baca.postevent.padding(1.5),
+            baca.tweak.padding(1.5),
         )
         baca.override.dls_staff_padding(o, 6)
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "1-2 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
     for n in [6, 8, 9, 10]:
@@ -453,7 +453,7 @@ def vn(m):
         baca.spanners.material_annotation(
             o,
             "3-1 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
 
@@ -476,8 +476,8 @@ def va(m):
         baca.spanners.material_annotation(
             o,
             "A.4 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
     for n in [8, 9, 10]:
@@ -497,7 +497,7 @@ def va(m):
         baca.spanners.material_annotation(
             o,
             "3-1 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
 
@@ -531,7 +531,7 @@ def vc(m):
         baca.spanners.material_annotation(
             o,
             "2-4 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
     with baca.scope(m.get(4, 5)) as o:
@@ -540,15 +540,15 @@ def vc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-ob-markup",
-            baca.postevent.padding(1.5),
-            baca.postevent.parent_alignment_x(0),
+            baca.tweak.padding(1.5),
+            baca.tweak.parent_alignment_x(0),
         )
         baca.override.dls_staff_padding(o, 6)
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "1-2 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
     with baca.scope(m[6]) as o:
@@ -564,7 +564,7 @@ def vc(m):
         baca.spanners.material_annotation(
             o,
             "3-1 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
 
diff --git a/faberge/sections/09/music.py b/faberge/sections/09/music.py
index 9c15b2a9a..a0a9eba61 100644
--- a/faberge/sections/09/music.py
+++ b/faberge/sections/09/music.py
@@ -35,19 +35,19 @@ def GLOBALS(skips, rests, first_measure_number):
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "H",
-        baca.postevent.extra_offset((0, 9)),
+        baca.tweak.extra_offset((0, 9)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_PARTS)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "H",
-        baca.postevent.extra_offset((0, 14)),
+        baca.tweak.extra_offset((0, 14)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SCORE)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "H",
-        baca.postevent.extra_offset((0, 18)),
+        baca.tweak.extra_offset((0, 18)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SECTION)
     for index, item in (
@@ -207,8 +207,8 @@ def fl(m):
         baca.spanners.material_annotation(
             o,
             "5-2 -|",
-            baca.postevent.color("#darkgreen"),
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.color("#darkgreen"),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
     with baca.scope(m[6]) as o:
@@ -240,15 +240,15 @@ def eh(m):
         baca.spanners.material_annotation(
             o,
             "4-5 -|",
-            baca.postevent.color("#darkgreen"),
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.color("#darkgreen"),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
         baca.pitch(o, "A4")
         for run in baca.select.runs(o):
             baca.spanners.trill(
                 run,
-                baca.postevent.bound_details_right_padding(2),
+                baca.tweak.bound_details_right_padding(2),
                 rleak=True,
             )
     with baca.scope(m[4]) as o:
@@ -265,13 +265,13 @@ def eh(m):
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "MM =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         for plt in baca.select.plts(o):
             baca.spanners.trill(
                 plt,
-                baca.postevent.bound_details_right_padding(2),
+                baca.tweak.bound_details_right_padding(2),
                 rleak=True,
             )
         baca.override.trill_spanner_staff_padding(o, 5.5)
@@ -298,8 +298,8 @@ def fl_cl(cache):
             baca.spanners.material_annotation(
                 o,
                 "3-7 -|",
-                baca.postevent.color("#darkgreen"),
-                baca.postevent.staff_padding(5.5),
+                baca.tweak.color("#darkgreen"),
+                baca.tweak.staff_padding(5.5),
                 rleak=True,
             )
 
@@ -314,14 +314,14 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-castanets-markup",
-            baca.postevent.padding(1.5),
+            baca.tweak.padding(1.5),
         )
     for n in [1, 2]:
         with baca.scope(m.get(n)) as o:
             for run in baca.select.runs(o):
                 baca.spanners.trill(
                     run,
-                    baca.postevent.bound_details_right_padding(2),
+                    baca.tweak.bound_details_right_padding(2),
                     rleak=True,
                 )
     with baca.scope(m.get(1, 2)) as o:
@@ -330,8 +330,8 @@ def perc(m):
         baca.spanners.material_annotation(
             o,
             "4-5 -|",
-            baca.postevent.color("#darkgreen"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#darkgreen"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.staff_position(o, 1)
@@ -348,13 +348,13 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-crotales-bowed-markup",
-            baca.postevent.staff_padding(6),
+            baca.tweak.staff_padding(6),
         )
         baca.spanners.material_annotation(
             o,
             "A.1 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.pitch(o, "F#4")
@@ -370,8 +370,8 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-marimba-attackless-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(6),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(6),
         )
         baca.stem_tremolo(o.pleaf(0))
     with baca.scope(m.leaves()) as o:
@@ -427,14 +427,14 @@ def vn(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-seven-e-flat",
-            baca.postevent.padding(1.5),
+            baca.tweak.padding(1.5),
         )
         baca.pitch(o, "Dtqf5")
     with baca.scope(m.leaves()) as o:
         baca.spanners.material_annotation(
             o,
             "3-2 / 3-3 =|",
-            baca.postevent.staff_padding(10.5),
+            baca.tweak.staff_padding(10.5),
             rleak=True,
         )
 
@@ -528,7 +528,7 @@ def va(m):
         baca.markup(
             o.pleaf(0),
             r"\faberge-eleventh-degree-of-e-markup",
-            baca.postevent.padding(1.5),
+            baca.tweak.padding(1.5),
         )
         baca.quadruple_staccato(abjad.select.get(baca.select.plts(o), [0], 4))
         baca.stem_tremolo(abjad.select.get(baca.select.plts(o), [1, 2, 3], 4))
@@ -536,7 +536,7 @@ def va(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-thirteen-e-flat",
-            baca.postevent.padding(1.5),
+            baca.tweak.padding(1.5),
         )
         baca.pitch(o, "Bqs4")
     with baca.scope(m.leaves()) as o:
@@ -544,7 +544,7 @@ def va(m):
         baca.spanners.material_annotation(
             o,
             "3-2 / 3-3 =|",
-            baca.postevent.staff_padding(10.5),
+            baca.tweak.staff_padding(10.5),
             rleak=True,
         )
 
@@ -582,8 +582,8 @@ def vc(m):
         baca.hairpin(
             o,
             "p<f-poco-scratch",
-            # (baca.postevent.parent_alignment_x(-1), -1),
-            # (baca.postevent.self_alignment_x(-1), -1),
+            # (baca.tweak.parent_alignment_x(-1), -1),
+            # (baca.tweak.self_alignment_x(-1), -1),
             rleak=True,
         )
     for n in [5, 6, 7]:
@@ -597,14 +597,14 @@ def vc(m):
         with baca.scope(m[n]) as o:
             baca.down_bow(
                 abjad.select.get(baca.select.pheads(o), [0], 2),
-                baca.postevent.padding(1),
-                baca.postevent.parent_alignment_x(0.5),
+                baca.tweak.padding(1),
+                baca.tweak.parent_alignment_x(0.5),
                 full=True,
             )
             baca.up_bow(
                 abjad.select.get(baca.select.pheads(o), [1], 2),
-                baca.postevent.padding(1),
-                baca.postevent.parent_alignment_x(0.5),
+                baca.tweak.padding(1),
+                baca.tweak.parent_alignment_x(0.5),
             )
             for note in abjad.select.get(o, ([0], 2)):
                 baca.spanners.half_clt(
@@ -621,7 +621,7 @@ def vc(m):
         baca.spanners.material_annotation(
             o,
             "3-3 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
     with baca.scope(m[8]) as o:
diff --git a/faberge/sections/10/music.py b/faberge/sections/10/music.py
index 58273c441..1704b3d85 100644
--- a/faberge/sections/10/music.py
+++ b/faberge/sections/10/music.py
@@ -35,19 +35,19 @@ def GLOBALS(skips, first_measure_number):
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "I",
-        baca.postevent.extra_offset((0, 9)),
+        baca.tweak.extra_offset((0, 9)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_PARTS)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "I",
-        baca.postevent.extra_offset((0, 14)),
+        baca.tweak.extra_offset((0, 14)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SCORE)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "I",
-        baca.postevent.extra_offset((0, 18)),
+        baca.tweak.extra_offset((0, 18)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SECTION)
     for index, item in (
@@ -207,13 +207,13 @@ def eh(m):
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "MM =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         for plt in baca.select.plts(o):
             baca.spanners.trill(
                 plt,
-                baca.postevent.bound_details_right_padding(2),
+                baca.tweak.bound_details_right_padding(2),
                 rleak=True,
             )
         baca.override.trill_spanner_staff_padding(o, 5.5)
@@ -253,7 +253,7 @@ def fl_cl(cache):
                 baca.glissando(o.pleaves()[2:4])
                 baca.spanners.trill(
                     o.leaves()[:2],
-                    baca.postevent.bound_details_right_padding(2),
+                    baca.tweak.bound_details_right_padding(2),
                     rleak=True,
                 )
         with baca.scope(m.leaves()) as o:
@@ -261,7 +261,7 @@ def fl_cl(cache):
             baca.spanners.material_annotation(
                 o,
                 "3-4 / 3-5 =|",
-                baca.postevent.staff_padding(8),
+                baca.tweak.staff_padding(8),
                 rleak=True,
             )
         with baca.scope(m[1]) as o:
@@ -303,8 +303,8 @@ def pf(cache):
         baca.dynamic(
             o.phead(0),
             "f",
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-1, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-1, 0)),
         )
     with baca.scope(m.get(5, 6)) as o:
         baca.pitch(o, "G6:A6:B6:C7")
@@ -315,8 +315,8 @@ def pf(cache):
         baca.spanners.material_annotation(
             o,
             "2-4 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.spanners.ottava(o.tleaves(), rleak=True)
@@ -357,14 +357,14 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-bd-struck-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
         baca.spanners.material_annotation(
             o,
             "A.2 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.staff_position(o, -1)
@@ -375,13 +375,13 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-woodblock-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
         baca.spanners.material_annotation(
             o,
             "MM =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.staff_position(o, 0)
@@ -408,7 +408,7 @@ def vn(m):
         baca.spanners.material_annotation(
             o,
             "3-4 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
     with baca.scope(m[4]) as o:
@@ -423,14 +423,14 @@ def vn(m):
         baca.dynamic(
             o.phead(0),
             "f",
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-0.75, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-0.75, 0)),
         )
         baca.spanners.material_annotation(
             o,
             "2-4 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.pitch(o, "A6")
@@ -446,7 +446,7 @@ def vn(m):
         baca.spanners.material_annotation(
             o,
             "3-5 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.pitch(o, "C5")
@@ -460,7 +460,7 @@ def va(m):
         baca.spanners.material_annotation(
             o,
             "3-4 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
     for n in [1, 2, 3]:
@@ -483,15 +483,15 @@ def va(m):
         baca.dynamic(
             o.phead(0),
             "mp-ancora",
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-1, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-1, 0)),
         )
         baca.glissando(o, "D3")
         baca.spanners.material_annotation(
             o,
             "A.4 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.stem_tremolo(o.pleaves())
@@ -511,7 +511,7 @@ def va(m):
         baca.spanners.material_annotation(
             o,
             "3-5 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.pitch(o, "Bb3")
@@ -558,15 +558,15 @@ def vc(m, metadata):
             )
             baca.up_bow(
                 abjad.select.get(baca.select.pheads(o), [1], 2),
-                baca.postevent.padding(1),
-                baca.postevent.parent_alignment_x(0.5),
+                baca.tweak.padding(1),
+                baca.tweak.parent_alignment_x(0.5),
             )
     for n in [1, 2, 3, 4]:
         with baca.scope(m[n]) as o:
             baca.down_bow(
                 o.phead(0),
-                baca.postevent.padding(1),
-                baca.postevent.parent_alignment_x(0.5),
+                baca.tweak.padding(1),
+                baca.tweak.parent_alignment_x(0.5),
                 full=True,
             )
             baca.spanners.half_clt(
@@ -580,7 +580,7 @@ def vc(m, metadata):
         baca.spanners.material_annotation(
             o,
             "3-4 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
     with baca.scope(m[4]) as o:
@@ -594,14 +594,14 @@ def vc(m, metadata):
         baca.dynamic(
             o.phead(0),
             "f",
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-1, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-1, 0)),
         )
         baca.spanners.material_annotation(
             o,
             "2-4 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.pitch(o, "F#5")
@@ -611,8 +611,8 @@ def vc(m, metadata):
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "1-1 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.override.note_head_style_harmonic(o.pleaves())
diff --git a/faberge/sections/11/music.py b/faberge/sections/11/music.py
index bf9e6e5d6..bd2ed2928 100644
--- a/faberge/sections/11/music.py
+++ b/faberge/sections/11/music.py
@@ -34,19 +34,19 @@ def GLOBALS(skips, first_measure_number):
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "J",
-        baca.postevent.extra_offset((0, 9)),
+        baca.tweak.extra_offset((0, 9)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_PARTS)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "J",
-        baca.postevent.extra_offset((0, 14)),
+        baca.tweak.extra_offset((0, 14)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SCORE)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "J",
-        baca.postevent.extra_offset((0, 18)),
+        baca.tweak.extra_offset((0, 18)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SECTION)
     for index, item in (
@@ -205,23 +205,23 @@ def eh(m):
         baca.dynamic(
             o.phead(0),
             "pp-whiteout",
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-1.5, 0)),
-            baca.postevent.parent_alignment_x(0),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-1.5, 0)),
+            baca.tweak.parent_alignment_x(0),
         )
     with baca.scope(m.get(3, 4)) as o:
         baca.spanners.material_annotation(
             o.pleaves(),
             "4-5 -|",
-            baca.postevent.color("#darkgreen"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#darkgreen"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.pitch(o, "A5")
         for plt in baca.select.plts(o):
             baca.spanners.trill(
                 plt,
-                baca.postevent.bound_details_right_padding(2),
+                baca.tweak.bound_details_right_padding(2),
                 rleak=True,
             )
 
@@ -251,7 +251,7 @@ def fl_cl(cache):
                 baca.glissando(o.pleaves()[2:4])
                 baca.spanners.trill(
                     o.leaves()[:2],
-                    baca.postevent.bound_details_right_padding(2),
+                    baca.tweak.bound_details_right_padding(2),
                     rleak=True,
                 )
         with baca.scope(m[1]) as o:
@@ -269,7 +269,7 @@ def fl_cl(cache):
             baca.spanners.material_annotation(
                 o,
                 "3-6 =|",
-                baca.postevent.staff_padding(8),
+                baca.tweak.staff_padding(8),
                 rleak=True,
             )
         with baca.scope(m.get(5, 8)) as o:
@@ -285,7 +285,7 @@ def fl_cl(cache):
             baca.spanners.material_annotation(
                 o,
                 "3-7 =|",
-                baca.postevent.staff_padding(8),
+                baca.tweak.staff_padding(8),
                 rleak=True,
             )
             baca.override.script_x_extent_zero(o)
@@ -304,15 +304,15 @@ def pf(cache):
         baca.dynamic(
             o.phead(0),
             "pp-whiteout",
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-1.5, 0)),
-            baca.postevent.parent_alignment_x(0),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-1.5, 0)),
+            baca.tweak.parent_alignment_x(0),
         )
         baca.spanners.material_annotation(
             o,
             "3-1 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.spanners.ottava(o.tleaves(), rleak=True)
@@ -326,14 +326,14 @@ def pf(cache):
         baca.dynamic(
             o.phead(0),
             "f-sempre",
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-4, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-4, 0)),
         )
     with baca.scope(m.get(4, 8)) as o:
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "3-7 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.pitch(o, "A3")
@@ -361,7 +361,7 @@ def perc(m):
         baca.spanners.material_annotation(
             o,
             "MM =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.staff_position(o, 0)
@@ -369,28 +369,28 @@ def perc(m):
         baca.dynamic(
             o.phead(0),
             "pp-whiteout",
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-1.5, 0)),
-            baca.postevent.parent_alignment_x(0),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-1.5, 0)),
+            baca.tweak.parent_alignment_x(0),
         )
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-castanets-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(10),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(10),
         )
         baca.spanners.material_annotation(
             baca.select.pleaves(o),
             "4-5 -|",
-            baca.postevent.color("#darkgreen"),
-            baca.postevent.staff_padding(14.5),
+            baca.tweak.color("#darkgreen"),
+            baca.tweak.staff_padding(14.5),
             rleak=True,
         )
         for plt in baca.select.plts(o):
             baca.spanners.trill(
                 plt,
-                baca.postevent.bound_details_right_padding(2),
-                baca.postevent.staff_padding(7),
+                baca.tweak.bound_details_right_padding(2),
+                baca.tweak.staff_padding(7),
                 rleak=True,
             )
         baca.staff_position(o, 1)
@@ -406,13 +406,13 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-bd-superball-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(10),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(10),
         )
         baca.spanners.material_annotation(
             o,
             "3-7 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.staff_position(o, -1)
@@ -427,8 +427,8 @@ def vn(m):
         baca.spanners.material_annotation(
             o,
             "A.3 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.pitch(o, "E4")
@@ -445,8 +445,8 @@ def vn(m):
         baca.spanners.material_annotation(
             o,
             "3-1 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.pitch(o, "A#4")
@@ -484,8 +484,8 @@ def va(m):
         baca.spanners.material_annotation(
             o,
             "A.3 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.pitch(o, "E4")
@@ -501,15 +501,15 @@ def va(m):
         baca.dynamic(
             o.phead(0),
             "mp",
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-1.5, 0)),
-            baca.postevent.parent_alignment_x(0),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-1.5, 0)),
+            baca.tweak.parent_alignment_x(0),
         )
         baca.spanners.material_annotation(
             o,
             "A.4 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.spanners.xfb(
@@ -557,15 +557,15 @@ def vc(m, metadata):
         baca.dynamic(
             o.phead(0),
             "pp",
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-1.5, 0)),
-            baca.postevent.parent_alignment_x(0),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-1.5, 0)),
+            baca.tweak.parent_alignment_x(0),
         )
         baca.spanners.material_annotation(
             o,
             "3-1 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.pitch(o, "F#5")
diff --git a/faberge/sections/12/music.py b/faberge/sections/12/music.py
index ff7f06f6b..c1e43a6f1 100644
--- a/faberge/sections/12/music.py
+++ b/faberge/sections/12/music.py
@@ -36,19 +36,19 @@ def GLOBALS(skips):
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "K",
-        baca.postevent.extra_offset((0, 9)),
+        baca.tweak.extra_offset((0, 9)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_PARTS)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "K",
-        baca.postevent.extra_offset((0, 14)),
+        baca.tweak.extra_offset((0, 14)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SCORE)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "K",
-        baca.postevent.extra_offset((0, 18)),
+        baca.tweak.extra_offset((0, 18)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SECTION)
     for index, item in (
@@ -200,7 +200,7 @@ def fl(m):
         baca.spanners.material_annotation(
             o,
             "4-1 =|",
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
         baca.pitch(o, "F3")
@@ -211,7 +211,7 @@ def cl(m):
         baca.spanners.material_annotation(
             o,
             "4-1 =|",
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
         baca.pitch(o, "Eb2")
@@ -248,7 +248,7 @@ def pf(cache):
         baca.spanners.material_annotation(
             o,
             "4-1 =|",
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
         baca.pitch(o, "A3")
@@ -266,8 +266,8 @@ def pf(cache):
         baca.spanners.material_annotation(
             o,
             "2-4 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.spanners.ottava(o.tleaves(), rleak=True)
@@ -276,14 +276,14 @@ def pf(cache):
         baca.dynamic(
             o.phead(0),
             '"mf"',
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-1, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-1, 0)),
         )
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-tuning-pegs-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
         baca.override.note_head_stencil_false(o.pleaves())
         baca.override.tuplet_bracket_transparent(o)
@@ -316,7 +316,7 @@ def perc(m):
         baca.spanners.material_annotation(
             o,
             "4-1 =|",
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
     with baca.scope(m[3]) as o:
@@ -331,13 +331,13 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-bd-struck-markup",
-            baca.postevent.staff_padding(6),
+            baca.tweak.staff_padding(6),
         )
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "A.2 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(10.5),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(10.5),
             rleak=True,
         )
         baca.staff_position(o, -1)
@@ -356,7 +356,7 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-bd-sponge-markup",
-            baca.postevent.staff_padding(6),
+            baca.tweak.staff_padding(6),
         )
         baca.override.stem_direction_down(o.pleaves())
     with baca.scope(m.leaves()) as o:
@@ -376,7 +376,7 @@ def vn(m):
         baca.spanners.material_annotation(
             o,
             "4-1 =|",
-            baca.postevent.staff_padding(9.5),
+            baca.tweak.staff_padding(9.5),
             rleak=True,
         )
         library.clb_staff_positions(o)
@@ -390,8 +390,8 @@ def vn(m):
         baca.spanners.material_annotation(
             o,
             "2-4 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
         baca.pitch(o, "A6")
@@ -407,13 +407,13 @@ def vn(m):
         baca.dynamic(
             o.phead(0),
             '"mf"',
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-2, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-2, 0)),
         )
         baca.spanners.material_annotation(
             o,
             "4-2 =|",
-            baca.postevent.staff_padding(9.5),
+            baca.tweak.staff_padding(9.5),
             rleak=True,
         )
         library.clb_staff_positions(o)
@@ -432,8 +432,8 @@ def va(m):
         baca.spanners.material_annotation(
             o,
             "A.4 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
         baca.spanners.xfb(
@@ -455,13 +455,13 @@ def va(m):
         baca.dynamic(
             o.phead(0),
             '"mf"',
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-2, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-2, 0)),
         )
         baca.spanners.material_annotation(
             o,
             "4-2 =|",
-            baca.postevent.staff_padding(9.5),
+            baca.tweak.staff_padding(9.5),
             rleak=True,
         )
         baca.staccato(o.pheads())
@@ -485,7 +485,7 @@ def vc(m):
         baca.spanners.material_annotation(
             o,
             "4-1 =|",
-            baca.postevent.staff_padding(9.5),
+            baca.tweak.staff_padding(9.5),
             rleak=True,
         )
         library.clb_staff_positions(o)
@@ -499,8 +499,8 @@ def vc(m):
         baca.spanners.material_annotation(
             o,
             "2-4 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
         baca.pitch(o, "F#5")
@@ -510,13 +510,13 @@ def vc(m):
         baca.dynamic(
             o.phead(0),
             '"mf"',
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-2, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-2, 0)),
         )
         baca.spanners.material_annotation(
             o,
             "4-2 =|",
-            baca.postevent.staff_padding(9.5),
+            baca.tweak.staff_padding(9.5),
             rleak=True,
         )
         baca.spanners.clb(
diff --git a/faberge/sections/13/music.py b/faberge/sections/13/music.py
index fd104a229..2ebc00f55 100644
--- a/faberge/sections/13/music.py
+++ b/faberge/sections/13/music.py
@@ -34,19 +34,19 @@ def GLOBALS(skips):
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "L",
-        baca.postevent.extra_offset((0, 9)),
+        baca.tweak.extra_offset((0, 9)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_PARTS)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "L",
-        baca.postevent.extra_offset((0, 14)),
+        baca.tweak.extra_offset((0, 14)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SCORE)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "L",
-        baca.postevent.extra_offset((0, 18)),
+        baca.tweak.extra_offset((0, 18)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SECTION)
     for index, item in (
@@ -269,8 +269,8 @@ def fl(m):
         baca.spanners.material_annotation(
             o,
             "2-1 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
         baca.pitches(
@@ -280,7 +280,7 @@ def fl(m):
         )
         baca.spanners.trill(
             o.leaves()[:2],
-            baca.postevent.bound_details_right_padding(2),
+            baca.tweak.bound_details_right_padding(2),
             rleak=True,
         )
     with baca.scope(m.leaves()) as o:
@@ -299,13 +299,13 @@ def eh(m):
             )
             baca.spanners.trill(
                 run,
-                baca.postevent.bound_details_right_padding(2),
+                baca.tweak.bound_details_right_padding(2),
                 rleak=True,
             )
         baca.spanners.material_annotation(
             o,
             "4-4 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
     with baca.scope(m.get(7, 8)) as o:
@@ -327,7 +327,7 @@ def cl(m):
         baca.spanners.material_annotation(
             o,
             "4-3 / 4-4 =|",
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
     with baca.scope(m.get(7, 8)) as o:
@@ -341,9 +341,9 @@ def cl(m):
         baca.override.dls_staff_padding(o, 10)
         library.bcl_color_fingerings(
             o.pheads(),
-            baca.postevent.direction_down(),
-            baca.postevent.parent_alignment_x(-0.5),
-            baca.postevent.staff_padding(5),
+            baca.tweak.direction_down(),
+            baca.tweak.parent_alignment_x(-0.5),
+            baca.tweak.staff_padding(5),
         )
 
 
@@ -362,8 +362,8 @@ def pf(cache):
         baca.dynamic(
             o.phead(0),
             "mp",
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-2, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-2, 0)),
         )
     with baca.scope(m.get(3, 4)) as o:
         baca.pitch(o, "G3:A3:C4")
@@ -375,8 +375,8 @@ def pf(cache):
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "2-1 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
     with baca.scope(m[5]) as o:
@@ -384,14 +384,14 @@ def pf(cache):
         baca.dynamic(
             o.phead(0),
             '"mf"',
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-1, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-1, 0)),
         )
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-tuning-pegs-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
         baca.override.note_head_stencil_false(o.pleaves())
         baca.override.tuplet_bracket_transparent(o)
@@ -419,8 +419,8 @@ def perc(m):
         baca.dynamic(
             o.phead(0),
             "f-sempre",
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-1, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-1, 0)),
         )
         baca.staff_position(o, 1)
         baca.override.stem_direction_up(o.pleaves())
@@ -428,35 +428,35 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-woodblock-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
     with baca.scope(m.get(7, 8)) as o:
         baca.override.dls_staff_padding(o, 6)
         baca.dynamic(
             o.phead(0),
             "p-sempre",
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-1, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-1, 0)),
         )
         baca.staff_position(o, 0)
     with baca.scope(m.leaves()) as o:
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-castanets-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
         baca.spanners.material_annotation(
             o,
             "4-3 / 4-4 =|",
-            baca.postevent.staff_padding(13),
+            baca.tweak.staff_padding(13),
             rleak=True,
         )
         for plt in baca.select.plts(o):
             baca.spanners.trill(
                 plt,
-                baca.postevent.bound_details_right_padding(2),
+                baca.tweak.bound_details_right_padding(2),
                 rleak=True,
             )
 
@@ -488,13 +488,13 @@ def va(m):
         baca.dynamic(
             o.phead(0),
             "p-sempre",
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-1, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-1, 0)),
         )
         baca.spanners.material_annotation(
             o,
             "4-4 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.pitch(o, "Eb3")
@@ -547,7 +547,7 @@ def vn_va_vc(cache):
             baca.spanners.material_annotation(
                 baca.select.tleaves(o),
                 "4-3 =|",
-                baca.postevent.staff_padding(9.5),
+                baca.tweak.staff_padding(9.5),
                 rleak=True,
             )
             baca.staccato(o.pheads())
diff --git a/faberge/sections/14/music.py b/faberge/sections/14/music.py
index 5a9a850d4..c92481a7e 100644
--- a/faberge/sections/14/music.py
+++ b/faberge/sections/14/music.py
@@ -34,19 +34,19 @@ def GLOBALS(skips):
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "M",
-        baca.postevent.extra_offset((0, 9)),
+        baca.tweak.extra_offset((0, 9)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_PARTS)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "M",
-        baca.postevent.extra_offset((0, 14)),
+        baca.tweak.extra_offset((0, 14)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SCORE)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "M",
-        baca.postevent.extra_offset((0, 18)),
+        baca.tweak.extra_offset((0, 18)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SECTION)
     for index, item in (
@@ -178,14 +178,14 @@ def fl(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-airtone-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "1-1 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
         baca.staff_position(o, 0)
@@ -208,7 +208,7 @@ def fl(m):
         baca.spanners.material_annotation(
             o,
             "5-1 =|",
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
         baca.pitch(o, "C#5")
@@ -251,14 +251,14 @@ def cl(m):
         baca.spanners.material_annotation(
             o,
             "4-5 / 5-1 =|",
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
         library.bcl_color_fingerings(
             o.pheads(),
-            baca.postevent.direction_down(),
-            baca.postevent.parent_alignment_x(-0.5),
-            baca.postevent.staff_padding(5),
+            baca.tweak.direction_down(),
+            baca.tweak.parent_alignment_x(-0.5),
+            baca.tweak.staff_padding(5),
             rotation=-16,
         )
 
@@ -275,13 +275,13 @@ def eh(m):
             )
             baca.spanners.trill(
                 run,
-                baca.postevent.bound_details_right_padding(2),
+                baca.tweak.bound_details_right_padding(2),
                 rleak=True,
             )
         baca.spanners.material_annotation(
             o,
             "4-5 / 5-1 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
     with baca.scope(m.get(3, 4)) as o:
@@ -301,12 +301,12 @@ def pf(cache):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-woodblock-markup",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
         )
         baca.spanners.material_annotation(
             o,
             "MM =|",
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
         baca.staff_position(o, 0)
@@ -320,14 +320,14 @@ def perc(m):
         baca.spanners.material_annotation(
             o,
             "4-5 / 5-1 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.staff_position(o, 0)
         for plt in baca.select.plts(o):
             baca.spanners.trill(
                 plt,
-                baca.postevent.bound_details_right_padding(2),
+                baca.tweak.bound_details_right_padding(2),
                 rleak=True,
             )
 
@@ -339,14 +339,14 @@ def vn(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-ob-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "1-1 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
         baca.staff_position(o, 0)
@@ -356,12 +356,12 @@ def vn(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-woodblock-markup",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
         )
         baca.spanners.material_annotation(
             o,
             "MM =|",
-            baca.postevent.staff_padding(5.5),
+            baca.tweak.staff_padding(5.5),
             rleak=True,
         )
         baca.staff_position(o, 0)
@@ -375,7 +375,7 @@ def va(m):
         baca.spanners.material_annotation(
             o,
             "4-5 / 5-1 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         for plt in baca.select.plts(o):
@@ -396,8 +396,8 @@ def vc(m, metadata):
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "1-1 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         ),
         baca.override.note_head_style_harmonic(o.pleaves())
diff --git a/faberge/sections/15/music.py b/faberge/sections/15/music.py
index 11f5590f3..aae51d946 100644
--- a/faberge/sections/15/music.py
+++ b/faberge/sections/15/music.py
@@ -35,19 +35,19 @@ def GLOBALS(skips, rests):
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "N",
-        baca.postevent.extra_offset((0, 9)),
+        baca.tweak.extra_offset((0, 9)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_PARTS)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "N",
-        baca.postevent.extra_offset((0, 14)),
+        baca.tweak.extra_offset((0, 14)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SCORE)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "N",
-        baca.postevent.extra_offset((0, 18)),
+        baca.tweak.extra_offset((0, 18)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SECTION)
     for index, item in (
@@ -151,7 +151,7 @@ def fl(m):
         baca.spanners.material_annotation(
             o,
             "5-2 / 5-3 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.pitch(o, "C#5")
@@ -199,15 +199,15 @@ def cl(m):
         baca.spanners.material_annotation(
             o,
             "5-2 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.pitch(o, "F2")
         library.bcl_color_fingerings(
             o.pheads(),
-            baca.postevent.direction_down(),
-            baca.postevent.parent_alignment_x(-0.5),
-            baca.postevent.staff_padding(4.5),
+            baca.tweak.direction_down(),
+            baca.tweak.parent_alignment_x(-0.5),
+            baca.tweak.staff_padding(4.5),
         )
 
 
@@ -218,20 +218,20 @@ def pf(cache):
         baca.dynamic(
             o.phead(0),
             "f-whiteout",
-            baca.postevent.x_extent_zero(),
-            baca.postevent.extra_offset((-2, 0)),
+            baca.tweak.x_extent_zero(),
+            baca.tweak.extra_offset((-2, 0)),
         )
         baca.override.dls_staff_padding(o, 8)
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-woodblock-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
         baca.spanners.material_annotation(
             o,
             "MM =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.staff_position(o, 0)
@@ -253,14 +253,14 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-crotales-bowed-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(6),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(6),
         )
         baca.spanners.material_annotation(
             o,
             "A.1 -|",
-            baca.postevent.color("#red"),
-            baca.postevent.staff_padding(8),
+            baca.tweak.color("#red"),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.pitch(o, "E4")
@@ -272,13 +272,13 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-woodblock-markup",
-            baca.postevent.parent_alignment_x(0),
-            baca.postevent.staff_padding(8),
+            baca.tweak.parent_alignment_x(0),
+            baca.tweak.staff_padding(8),
         )
         baca.spanners.material_annotation(
             o,
             "MM =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
         baca.staff_position(o, 0)
@@ -294,14 +294,14 @@ def vn(cache):
         baca.markup(
             o.pleaf(0),
             r"\faberge-nine-plus-eleven-of-e-markup",
-            baca.postevent.padding(1.5),
+            baca.tweak.padding(1.5),
         )
     with baca.scope(m.leaves()) as o:
         baca.override.dls_staff_padding(o.leaves(), 6)
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "5-3 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
 
@@ -319,7 +319,7 @@ def va(m):
         baca.markup(
             o.pleaf(0),
             r"\faberge-seventh-degree-of-e-markup",
-            baca.postevent.padding(1.5),
+            baca.tweak.padding(1.5),
         )
         baca.pitch(o, "Dqf5")
     with baca.scope(m.leaves()) as o:
@@ -327,7 +327,7 @@ def va(m):
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "5-3 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
 
@@ -359,7 +359,7 @@ def vc(m):
         baca.spanners.material_annotation(
             baca.select.tleaves(o),
             "5-3 =|",
-            baca.postevent.staff_padding(8),
+            baca.tweak.staff_padding(8),
             rleak=True,
         )
 
diff --git a/faberge/sections/16/music.py b/faberge/sections/16/music.py
index 197539df5..327af1608 100644
--- a/faberge/sections/16/music.py
+++ b/faberge/sections/16/music.py
@@ -34,19 +34,19 @@ def GLOBALS(skips):
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "O",
-        baca.postevent.extra_offset((0, 9)),
+        baca.tweak.extra_offset((0, 9)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_PARTS)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "O",
-        baca.postevent.extra_offset((0, 14)),
+        baca.tweak.extra_offset((0, 14)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SCORE)
     wrappers = baca.rehearsal_mark(
         skips[1 - 1],
         "O",
-        baca.postevent.extra_offset((0, 18)),
+        baca.tweak.extra_offset((0, 18)),
     )
     baca.tags.tag(wrappers, baca.tags.ONLY_SECTION)
     for index, item in (
@@ -166,8 +166,8 @@ def fl_eh_rh(cache):
             baca.markup(
                 o.pleaf(0),
                 r"\baca-boxed-very-small-maraca-markup",
-                baca.postevent.padding(1.5),
-                baca.postevent.parent_alignment_x(0),
+                baca.tweak.padding(1.5),
+                baca.tweak.parent_alignment_x(0),
             )
         with baca.scope(m.get(1, 5)) as o:
             baca.stem_tremolo(o.pleaves())
@@ -184,8 +184,8 @@ def perc(m):
         baca.markup(
             o.pleaf(0),
             r"\baca-boxed-bd-sponge-markup",
-            baca.postevent.padding(1.5),
-            baca.postevent.parent_alignment_x(0),
+            baca.tweak.padding(1.5),
+            baca.tweak.parent_alignment_x(0),
         )