Magic Music Visuals - Fully-customizable and highly responsive visuals for live and recorded audio & MIDI.
Chataigne - Artist-friendly Modular Machine for Art and Technology
Avee Player - Avee Music Player for Android
IanniX - IanniX is a graphical open source sequencer, based on Iannis Xenakis works, for digital art.
MilkDrop - 3D audio visualization plugin, compatible with WinAmp plugin API
ossia score - Open-source interactive sequencer for the intermedia arts