SoundBetter - Marketplace for musicians and music production professionals
keezy - A colorful soundboard. Play with music.
Melody ML - Easily separate audio tracks using machine learning
SoundGrail - SoundGrail Music App designed for pianists, guitarists, and DJs.
PrimoMusic - An iTunes alternative made to manage iPhone/iPod media files
Aftertouch - Aftertouch – 3D MIDI Controller created and published by Kevin Nelson.