Youtube-DJ - Mix YouTube songs together
Muslate - A Home of Indie Music : Listen, Organize & Share Your Music
Edjing - Discover edjing and edjing Pro, the most powerful DJ apps for music lovers! Mix on Android, Windows and iOS devices and record then share your DJ sets!
Spotify - Map shows when two people play same song at same time
Pacemaker - Create and share mixtapes with friends
Tunedly - Online Platform Connects Songwriters With Musicians