Spotify - Map shows when two people play same song at same time
GoodBarber - GoodBarber is a mobile app creation platform.
Last.fm - The world's largest online music service. Listen online, find out more about your favourite artists, and get music recommendations, only at Last.fm
Fuse - Fuse is a UX tool suite for mobile app designers and developers.
SoundCloud - Enjoy music & follow favourite artists
Dropsource - Mobile development platform for building native iOS & Android apps