Audacity - Audacity is a free and open-source audio production software suite that includes a surprising array of editing tools and recording systems.
keezy - A colorful soundboard. Play with music.
Oceanaudio - Ocenaudio is a cross-platform, easy to use, fast and functional audio editor.
SoundGrail - SoundGrail Music App designed for pianists, guitarists, and DJs.
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.
Aftertouch - Aftertouch – 3D MIDI Controller created and published by Kevin Nelson.