Actually Spotify does more than collaborative filtering. Here’s a superb blog post on using convolutional filters on the spectrograms to build content-based rec

Actually Spotify does more than collaborative filtering. Here’s a superb blog post on using convolutional filters on the spectrograms to build content-based recommendations: https://benanne.github.io/2014/08/05/spotify-cnns.html https://benanne.github.io/2014/08/05/spotify-cnns.html