Even the fact that all these music services center around playlists is part of the problem. I don't want to spend my life making music playlists - I just want to play music. I don't always want to play an entire album either. What I'm saying is - if I've "added to my library" or I've "loved" a bunch of stuff, it would be so great if there were a convenient way for these services to auto-build playlists or just let me shuffle my whole library.