It's mind blowing to me that you won't release any other method other than playlists for organizing your songs, especially for the mobile app. Please take some notes from Rdio. They allow you to add albums, songs, etc to your personal Rdio collection (library)... From there you can filter your music by artist, album, song title, etc. just like you can from the iTunes music app. I'm sorry but this seems like it's a no brainer. Is there a reason you can't implement this? I can't see how this hasn't been done, especially since Rdio has these features already. The only reason I haven't switched to Rdio is because spotify's music quality/reliability is better. Please update this. I've seriously considered relying on my iTunes library again and using iTunes Match for my phone. Thanks.