KaraFun - KaraFun is the best online karaoke. Over 35,000 karaoke songs, with studio quality, at home or on the go. Regular updates. Free demo!
VCV Rack - A cross-platform modular synthesizer.
Sing! Karaoke by Smule - Karaoke with your favorite celebrity singers
Pure Data - Pd (aka Pure Data) is a real-time graphical programming environment for audio, video, and graphical...
Yokee - Karaoke to YouTube videos
miRack - Eurorack-style modular synthesizer for iOS.