7 hidden Spotify features you probably didn't know about

Spotify is pretty good at presenting you with songs, albums and playlists you may want to listen to next, but its user interface isn't always intuitive when it comes to organizing your music.  There are features in Spotify that I feel should exist, but don't, like custom visualizations to go along with your tunes. (There's a workaround for it, though, more on that later.) There are also features that exist, they're just not that easy to find. Here are some of its best hidden tricks. Spotify's P...