FIEND.fm - "Hot or Not" for music discovery: 2 hrs of tracks in 2 mins
HotMusic - HotMusic is the best music service to discover songs from your favourite genres RIGHT AFTER their...
Pacemaker - Create and share mixtapes with friends
Spotify - Map shows when two people play same song at same time
Boil the Frog - Create a seamless playlist between any two artists
Jams On Toast - Delightful iOS music player, handcrafted for album lovers