That sounds like a setup to only go after those you can make money from and not actually protecting IP.

By definition if your song is a hit it is heard by everyone. How do we show my new song is a direct consequence of hearing X song while your new song isn’t due to you hearing X song?

I can see an easy lawsuit by putting out a song and then claiming that anyone who heard it “learned” how to play their new album this way. The fact AI can output something that sounds different than any individual song it learned from means we can claim nearly all works derivative.