FIEND.fm - "Hot or Not" for music discovery: 2 hrs of tracks in 2 mins
Heartbeat - Listen to music with your friends together, on Spotify
Pacemaker - Create and share mixtapes with friends
Liyo - Stream your favorite music live with friends 🎶
Boil the Frog - Create a seamless playlist between any two artists
TuneMeet - Chat with people who are listening to the same song