I agree with everyone's criticisms that it seems to identify similar tempo and melodic riff, irrespective of genre. But to me this is a feature, not a bug. I could see this or something like it opening my eyes to music I would never possibly have found on my own. I really like it!
Spotify on the other hand seems to want to send me to the same group of artists and tracks I've listened to before, following some Collatz conjecture type algorithm that eventually converges on the same tuned playlist for that genre, no matter what the starting parameters may be.
Ideally one would like an algorithm to be able to realize,"this person prefers to explore new music from the same era," vs "that person prefers to jump around to different countries," vs "the other person prefers to remix their existing playlists," and thus come up with the optimal degree of novelty for each listener. Or at least let the user set a novelty slider to customize their own experience.
Spotify on the other hand seems to want to send me to the same group of artists and tracks I've listened to before, following some Collatz conjecture type algorithm that eventually converges on the same tuned playlist for that genre, no matter what the starting parameters may be.