Playlist Machinery - Tools that help you create & organize your Spotify playlists
Spotify - Map shows when two people play same song at same time
Party Blends - A way to blend your friends favourite tracks into one Spotify playlist.
DiscVibe - Create personalized and contextualized Spotify playlists
Lazyset - A Spotify playlist mixing Facebook Messenger bot
Ranked Records - Create Spotify playlists with all an artist's songs