It is common knowledge[0] that Spotify peruses and pilfers songs from users with similar listener profiles and trades them around under "Discover Weekly". There

It is common knowledge[0] that Spotify peruses and pilfers songs from users with similar listener profiles and trades them around under "Discover Weekly". There aren't any closely guarded IP secrets in the GP comment here. - 0. http://qz.com/571007/the-magic-that-makes-spotifys-discover-weekly-playlists-so-damn-good/ http://qz.com/571007/the-magic-that-makes-spotifys-discover-...