Many music sites have tried to turn music streaming into a social affair, but they've done so as a secondary feature on top of a preexisting platform; Audiogum's 'Friend Mix' is a system that's solely designed to let groups of friends share music with one another and discover music organically.
The Friend Mix platform tailors the choices for any given playlist to the tastes of the users therein. When a user constructs a playlist, they add in their friends' profiles on Tidal. The platform then analyzes all the users' tastes and helps to pick out genres, artists, and songs that seem fitting. The result is a playlist that satisfies the tastes of every user while giving all the other users a chance to listen to music that they might not normally encounter.