signal synthesis and modification
projectM, a MilkDrop compatible opensource music visualizer
This application can help you quickly identify the name of any song.
An Interactive Source Separation Editor
9-Octave Chromatic Tuner
School spectrometer, spectrograph, scpectroscope
Application to use a touch-sensing tablet as a MIDI instrument
Audacity AudioMonitor (customized version of of Audacity 1.3-13-b).