Hi heddystuff,
Thanks for posting your issue in the Apple Support Communities! We understand that your Music app has been closing unexpectedly when you're attempting to use it. We'd be glad to see how we can help point you in the right direction. We see in the Related Article section that you've already checked out If an app on your iPhone or iPad stops responding, closes unexpectedly, or won’t open.
If you've already attempted all the steps listed in the article and the behavior continues, we'd recommend reaching out to an Apple specialist next. You can reach them directly at Get Support - Official Apple Support. They'll be able to take a closer look into your issue with you to find a resolution.
Take care!