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A project to develop tools to enhance the quality of the meta data of your music library
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MetaMusic

A project to develop tools to enhance the quality of the meta data of your music library. It helped me to maintain a well tagged music collection and it might help you.

The following tools exist:

RatingSaver

RatingSaver deals with the information 'My Rating', 'Counter' and 'Last Played', that iTunes stores for each title inside its library.

Unfortunately this information is lost if you move or rename your music files from the location that is store inside the library. And since manually updating the locations and reimporting the XML version of the library is time-consuming and error-prone, RatingSaver

  • stores 'My Rating', 'Counter' and 'Last Played' from your iTunes library as ID3v2 tags in MP3 files
  • restores 'My Rating', 'Counter' and 'Last Played' from the ID3 tags of MP3 files into the iTunes library

Thus you may move or rename your MP3 files without losing the information 'My Rating', 'Counter' and 'Last Played'.

MP3Tidy

MP3Tidy processes the meta data of MP3 files stored in the ID3v1, ID3v2 and the the file name. It can

  • enrich the meta data by adding cover albums from several source, lyrics, publisher and compilation information
  • remove unnecessary meta data that players like iTunes, MusicMatch Jukebox (now Yahoo! Music Jukebox), Windows Media Player or utilities such as MusicBrainzTagger() write into the files
  • unify meta data that is redundantly stored
  • rename MP3 files according to their meta data
  • write ID3v1 and/or ID3v2 tags

This you can created smaller MP3 files with consistent and complete meta data that are easier to find and arrange in your player or portable music player.

MP3Viewer

MP3Viewer shows the meta data of MP3 files in a window.

And more

Besides these tools several command line tools exist:

  • RecursiveTagSetter allows manipulation the meta data of many MP3 files
  • MP3File shows the meta data of MP3 files on the command line
  • AmazonMusic fetches a cover from Amazon given an artist and an album name
  • CoverDBClient fetches a cover from several sources given an artist and an album name
  • LastFmCoverClient searches for covers written by the Last.fm client
  • WindowsMediaPlayerCoverClient searches for covers written by the Windows Media Player
  • DiscId calculates the disc id used by FreeDB to identify audio CD
  • CoverDownloader try to download covers for all known disc ids
  • FreeDBClient fetches the meta data from FreeDB for an audio CD
  • LyricsDBClient fetches lyrics from several sources given an artist and an track name
  • TRM calculates the TRM id used by MusicBrainz to identify audio files
  • MusicBrainzClient queries the MusicBrainz database given a artist, album or track name
  • M3UCreator creates a play list for music files in .m3u format
  • PLSCreator creates a play list for music files in .pls format
  • ID3v1TagCounter, ID3v2TagCounter count occurences of tags in many MP3 files
  • PathLength calculates the path length of MP3 files in a directory tree
  • MP3Extender extends the meta data of a MP3 file
  • MP3Mover moves a MP3 file according to its meta data
  • MP3Cleaner removes unnecessary meta data from MP3 files
  • MimeTypeGuesser tries to guess the MIME type of a file

FAQ

Q: Why Java?
A: I like it. That is why I had more fun developing it.

Q: Why Java 6?
A: It helped me to develop faster.

Q: Does my music collection need to have a structure?
A: A certain structure is not necessary. If however you'd like to use the option to rename files from the meta date, MP3Tidy uses a scheme Name of the artist / Name of the album / Name of the title .mp3 If you're using RecursiveTagSetter you can declare files as an compilation and MP3Tidy uses the scheme Name of the compilation / Name of the title .mp3

Q: How do you develop?
A: Currently, I'm using ant to build and IntelliJ IDEA to develop. There are plans to migrate the build process to Maven and get rid of the IDEA project files and the thirdparty directory.

Q: How do I compile it?
A: Set JAVA_HOME to a Java 6 SDK, put Maven into your PATH and call mvn clean package

I hope you like it, feedback is always welcome
Christian

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