Unusually for a Windows Phone update the update for the revised Xbox Music has different entry points to the original. This means for instance you can have the old app and the new one pinned and on your phone at the same time. It also means that if you updated to the new Xbox Music when it was released late yesterday you may still be running the old one if you had a tile pinned to the Start screen. After installing the update you need to delete your old tile and repin the app. Some users were complaining they saw no improvement with the new app. If that is you then the fix above will help you out. Now we just need the rest of the promised two-weekly updates.