Knowthelist - Knowthelist - the awesome party music player Easy to use for all party guests
The Wub Machine - Turn any music into Dubstep, Drum & Bass, and more.
Song Director - Song Director is a program that plays and keeps track of all your music files.
The Eternal Jukebox - For when your favorite song just isn't long enough
Aqualung - Music Player for GNU/Linux
YOU.DJ - Mix SoundCloud music and Youtube videos live in your browser.