Heartbeat - Listen to music with your friends together, on Spotify
AMPLI.FI - Live online music community. Twitch for tunes.
Join My Playlist - Listen to music live together with your friends in Spotify.
Twitch Creative - Watch artists create. Twitch expands into the arts.
Festify - Festify is a free Spotify-powered app that lets your guests choose which music should be played...
Bandlab - Capture, nurture, and collaborate on song ideas in the cloud