What if Spotify could generate a playlist of the top songs of a user's friends? Right now a user can view trending playlists and a few top tracks but what if you could shuffle more tracks? I know that Facebook can tell which friends interact more/ are "closer." I'm not sure if Spotify has this ability or if it could use this data from Facebook to show users what their "closer" friends are listening to.
All songs should have a popular meter. This way, when I search and album or artist, I would like to know which of their songs are the hits or more popular.