There's an entire industry of pluggers and marketers doing whatever they can to get tracks on those Spotify playlists. And also businesses which link artists to

There's an entire industry of pluggers and marketers doing whatever they can to get tracks on those Spotify playlists. And also businesses which link artists to playlist curators - for a fee, of course. There's no sense in which they're an organic reflection of anything at all. Pandora was never big enough to suffer much from that problem.