SoundGrail - SoundGrail Music App designed for pianists, guitarists, and DJs.
Madeon's Adventure Machine - Online remixing tool
keezy - A colorful soundboard. Play with music.
The Wub Machine - Turn any music into Dubstep, Drum & Bass, and more.
Figure - Propellerhead creates world-class software products and services that inspire music makers and provide the foundation for a worldwide creative musical community.
Serato DJ - Serato DJ is award winning, digital DJing software used by professionals across the globe.