Audio server, programming language, and IDE for sound synthesis
Quimup is a Linux client for MPD
Nyquist is a language for sound synthesis and music composition.
Layer-based headphone calibration, AutoEQ and FIR rendering
Folder-based music player
it's a video player, also works for music and pictures
Open source embedded speech-to-text engine
A Smarter Way to Tag FLAC, Vorbis, Lyrics, WMA, WavPack, and ID3 Tags
GTK+iostream, Data plots, ORB, Neural Networks, WSOLA
Audacity AudioMonitor (customized version of of Audacity 1.3-13-b).
dark themed version of free Audacity sound editor