Investment firms will buy the music rights of famous artists before they die and after they die, the firm will generate "official" and "legal" AI music of that artist. They'll do this with all the famous boomer musicians like Bruce Springer, etc. All other ai music generated from that artist will be banned.
They've been doing that for years now since all the old artists were making a fair amount of money off Spotify and streaming services. There already are big hordes of music rights for dead artists. They just gotta hook it up to the AI and start churning.