I don't normally run the Music App either, but I do have an iTunes connection. So to see what would happen, I opened it and it came up showing some pictures in the screen where you seem to show nothing. It then scanned my system and added all the iTunes music.
If no content comes up when you open the app, I suppose it may not be able to connect to the net or it may be having a problem. But you do have music on your system and when you try to add it what happens?
Do your other apps work OK? Are you receiving Windows updates OK? The app does appear to be related to the xBox utility, although I don't have one of those. I do see a place where it mentions signing up for an xBox profile, so mine might be working because I have not...