[gonehome]

I read it's based on human curation - this is the clever part.

If you have songs in your playlist that someone else has in their playlist it'll find a song in that other playlist that you don't have. Offload the complexity of matching to humans already doing it.

[taneq]

Sounds kind of like pagerank for songs.

[gonehome]

Yeah I could see that - if you think of being in a playlist like a citation.