Very nice looking, well done! As you have endless scrolling on the playlists, I would suggest having an element follow you on the left (Possibly the submit Play

Very nice looking, well done! As you have endless scrolling on the playlists, I would suggest having an element follow you on the left (Possibly the submit Playlist) - You'll have to try it to find out, but I feel it may give the site a "fuller" feel when scrolling down, rather than having an empty space.