Unless you're making songs into Nightcore then they'll probably get removed for copyright, I had a channel where I uploaded music to for over 2 years and had 2 copyright strikes at once for videos I uploaded 1 year ago so you gotta be careful
None of those work, I must be doing something wrong. I even tried {DISPLAYNAME} which is what is says in the essentials group manager config, which seems to work for that. :/