Music Organizer and Player
Play audio and video files in this Windows frontend for MPlayer.
Music juke box for Raspberry Pi, web/mobile inteface
A simple but powerful audio player for your PC
Free Audio Media player and Radio Player. Lots of things to have fun
Music Manager focusing on ID3 tags and internal player
Audacity AudioMonitor (customized version of of Audacity 1.3-13-b).
Quh aims to play everything that makes noise.