Jokosher - Jokosher is a simple and powerful multi-track studio.
SoundGrail - SoundGrail Music App designed for pianists, guitarists, and DJs.
Fission - Edit audio in minutes, not hours.
keezy - A colorful soundboard. Play with music.
Audacity - Audacity is a free and open-source audio production software suite that includes a surprising array of editing tools and recording systems.
Splice - Music creation, collaboration, and sharing made simple.