PlaylistMap - Connect with Spotify playlist curators from around the world
MusicTwin Finder - Find your MusicTwin by your Spotify playlists in 5 seconds.
Lazyset - A Spotify playlist mixing Facebook Messenger bot
Symphona App - Designed to make orchestral staff management a breeze.
Playlist Machinery - Tools that help you create & organize your Spotify playlists
JamBuddy - Find and collaborate with musicians around you thru Spotify