I’ve been posting for a little while on Groove Music’s database. While investigating, I wrote up some test utilities to read and write to the Groove Music database. These utilities have been combined and simplified into a utility called GrooveManager.
At this point, the utility is extremely limited. It will only edit Artist names and the Artist image. And the Artist image feature itself is limited in that you can’t use external images. It has to be an artist with a profile on Xbox Music. That limitation aside, there are still times when you have a legitimate need to use an artist that isn’t spelled the same as you have it in your collection. For example, Sergei Rachmaninoff seems to have many different spellings and variations.
The project page is at https://groovemanager.codeplex.com and has simple documentation on the website.