I would suggest to go over your existing appeals for muted music.
Two of my videos are falsely muted for 15 months now. I've sent multiple e-mails to Twitch on every possible email I could of find, and every response is that it's not their department to deal with appeals.
Time to update.
It now has been two years. The falsely muted audio is sill muted. All my attempts to contact someone has been ignored, and nothing is being done.
Why even have the appeal option when clearly no one is is dealing with the appeals?