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jEN

jEN is an open source Java library for the Echo Nest API.

Quick Start

What is it?

  • jEN is an open source Java library for the Echo Nest API. With jEN you have Java access to the entire set of API methods including:

  • artist - search for artists by name, description, or attribute, and get back detailed information about any artist including audio, similar artists, blogs, familiarity, hotttnesss, news, reviews, urls and video.

  • song - search songs by artist, title, description, or attribute (tempo, duration, etc) and get detailed information back about each song, such as hotttnesss, audio summary, or tracks.

  • track - upload a track to the Echo Nest and receive summary information about the track including key, duration, mode, tempo, time signature along with detailed track info including timbre, pitch, rhythm and loudness information.

  • playlists - create personalized playlists based on a wide range of parameters

  • taste profiles - provide for personalized recommendation and playlisting

This is a Java client API and assorted tools and helpers for the Echo Nest API (at developer.echonest.com). This client works with Version 4 of the Echo Nest API.

Artist Methods

Some of the Echo Nest artist capabilities:

  • search for artists
  • get familiarity and hotttness of an artist
  • get a list of the hottest artists
  • get news about an artist
  • get bios for an artist
  • get reviews about an artist
  • get blogs about an artist
  • get terms about an artist
  • get similar artists
  • get genre info about an artist
  • get artist location info about an artist
  • get years active info about an artist
  • get urls for an artist
  • get video for an artist
  • get images for an artist
  • get artist ids for other services such as Facebook, Twitter, Rdio, Spotify, Rhapsody and many more

Song methods

Some of the Echo Nest track capabilities:

  • search for songs
  • get info about a song including:
    • tempo
    • energy
    • danceability
    • loudness
    • liveness
    • speechiness
  • detailed audio analysis
  • song hotttnesss
  • artist hotttnesss
  • artist familiarity
  • artist location

Playlist Methods

  • create Pandora-style artist radio playlists
  • create Genre Radio Playlists
  • create dynamic playlists that respond to the users explicit and implicit feedback

Taste Profile Methods

  • create, read, update and delete taste info for a particular user
  • use a taste profile to seed playlists to give peronalized playlists

Getting Started

  • download the latest release
  • unzip the archive
  • add the jEN.jar file to your CLASSPATH
  • get an API key from developer.echonest.com
  • Browse the Javadocs included with the distribution

Quick Start

Here's some sample code that shows how to get similar artists with the API:

public static void main(String[] args) throws EchoNestException {
    EchoNestAPI echoNest = new EchoNestAPI(API_KEY);
    List<Artist> artists = echoNest.searchArtists("Weezer");

    if (artists.size() > 0) {
        Artist weezer = artists.get(0);
        System.out.println("Similar artists for " + weezer.getName());
        for (Artist simArtist : weezer.getSimilar(10)) {
            System.out.println("   " + simArtist.getName());
        }
    }
}

Code Examples

Browse some of the code examples

Building the jar file

Grab the source, cd to the top leve directory and issue:

% ant jar

Running a test shell

Included with the API is a command line interface to the Echo Nest API. You can use this shell to interact with the Echo Nest. To run the shell invoke the 'enshell' script, or run the command:

java -DECHO_NEST_API_KEY=$MY_ECHO_NEST_KEY -jar jEN.jar

Type 'help' to show the list of available commands. Try some:

% scripts/enshell
  Welcome to The Echo Nest API Shell
  type 'help' 

nest% get_similar weezer

Similarity for Weezer
  Rivers Cuomo
  The Rentals
  Fountains of Wayne
  Jimmy Eat World
  Phantom Planet
  The Presidents of the United States of America
  Cake
  Harvey Danger
  The All-American Rejects
  Ben Folds Five
  Nerf Herder
  Motion City Soundtrack
  New Found Glory
  Superdrag
  Foo Fighters

nest% splaylist Muse

    Muse Time = Is Running Out
    Coldplay = Viva La Vida
    Travis = Sing
    The Killers = Here With Me
    The Subways = I Want To Hear What You Have Got To Say
    Bloc Party = Banquet
    Keane = Is It Any Wonder?
    The Cooper Temple Clause = Talking To A Brick Wall
    Richard Ashcroft = Check The Meaning
    Athlete Wires = (Album Version)

nest%

Release History