Manage your mp3 files with jmusicmanager. It can find mp3, create playlist, edit tags, and more. There are several interfaces, you can customize almost the whole GUI, and you can extend the funcionality via plugins. Do you want more? Request it!
A Music File ID3 Tag Labeler
JAM-TAR(Java Automatic Music Tagger And Renamer) JAM-TAR reads a music file, generates a fingerprint and gets ID3 tags from the server. Then automatically tags the music file correctly with the artist, title, and genre. JAM-TAR is built upon Echonest's Codegen program and is made in Java.
Tinara is a media production system, currently composed of a basic revision control and archival system (DaMarcus), a build system (Alice), an audio playback engine (Tape), and a graphical audio recording and editing application.