Clone Hero - Clone Hero is a free rhythm game, which can be played with any 5 or 6 button guitar controller...
GoldWave - GoldWave. Digital Audio Editing Software. Record • Restore • Convert • Analyze. Fully loaded to do everything from the simplest recording and editing to the most sophisticated audio processing, restoration, enhancements, analysis, and conversions.
Osu - Osu is Music, Rhythm, Single and Multiplayer video game developed by Dean Herbert.
AudioMass - A full-featured web based audio editor 🎶
StepMania - Rhythm game for Windows, Mac, and Linux.
Wavosaur - WAVOSAUR is a free audio editor for Windows with VST plugins support. The program is ASIO compatible, can do loop points edition, auto-trim, noise removal.