PLEASE PLEASE PLEASE allow for annotated playlists. Not enough people check this ideas forum to vote on it, but I bet if you sent something out to all of your users, 100% of them would vote yes. I send playlists to friends, family, girlfriends, etc all the time and want to comment on why I chose specific songs or artists. It's fun, collabrative and would be cool for following people. Plus, it's something that I COULD do when I gave people CD's. You're better than CD's Spotify. If you have a better suggestion for how to get the idea out to the masses, please recommend.