Clean Up Google Music is a new extension that will remove all auto-generated playlists from your Google Play Music library, which are usually created automatically. It can also remove all the other types of cards found in the cards section, such as suggested albums and user playlists.

It's now possible to pick and choose what cards are displayed. If you turn it off, then the Google Music library will be displayed in all its glory. You can also disable it so that it will no longer appear in your card view.

The Google Play Music library can also be set to automatically resize all of your albums to a uniform small size.