Ron got a message that Google is eliminating Google Play Music and moving it all to YouTube Music. Can he upload his new music too? Leo says that if he pays for Google Play Music, the account will simply be moved over. So press transfer when getting the email and it'll be moved over. Whatever he had with the free tier of GPM, he'll have for the free tier of YTM.
Another option is to use Google TakeOut and redownload music to another service. In fact, do that first.