Mixed in Key - Mixed In Key is award-winning DJ software that gives you the #1 technique of the world's best...
Magic Music Visuals - Fully-customizable and highly responsive visuals for live and recorded audio & MIDI.
Tunebat - A browser based song key and bpm database. Supplies compatible songs for harmonic mixing.
MilkDrop - 3D audio visualization plugin, compatible with WinAmp plugin API
KeyFinder - Key estimation software for DJs
Kauna - Kauna is a music visualizer. Kauna renders any sound reproduction in system.