SoundGrail - SoundGrail Music App designed for pianists, guitarists, and DJs.
Mixxx - The most powerful free DJ software in the world.
keezy - A colorful soundboard. Play with music.
Guitarix - Guitarix is a simple Linux Rock Guitar Amplifier for https://alternativeto.
Splice - Music creation, collaboration, and sharing made simple.
VirtualDJ - Virtual DJ Software - MP3 and Video mix software for DJs