SoundGrail - SoundGrail Music App designed for pianists, guitarists, and DJs.
Partyhero - Pass your friends the aux!
keezy - A colorful soundboard. Play with music.
Heartbeat - Listen to music with your friends together, on Spotify
Figure - Propellerhead creates world-class software products and services that inspire music makers and provide the foundation for a worldwide creative musical community.
TuneMeet - Chat with people who are listening to the same song