fPlayer is a GPL free audio player for Windows and Android.
A notepad replacement aimed at developers
A light weight mp3 tag editor tool
SDownload allows you to download any song from Soundcloud with tags.
Deine Mediathek für unterwegs!
ID3 tag editor
A smarter MP3 filename and ID3-tag renamer
Metadata grabber
DragonMp3 is the one place you go to feed your audio/video habit.
A Music File ID3 Tag Labeler
Make music file directory structure for Subsonic
Tinymce Span Tag Visual Button
Advanced MPD Client
Library to perform read/write of ID3 tags in MP3 files