humit - A social networking app for music sharing and discovery.
BeatSense - Discover great music hand-picked by real people, in a single click. FREE and in real-time!
Heartbeat - Listen to music with your friends together, on Spotify
üWave - üWave is a self-hosted collaborative listening platform.
Discord Stages - Engage and grow your community with easy to run audio events
musiqpad - Musiqpad is a social-music software platform for users to host their own ‘pads’ (rooms).