Also I don't think people in general cares that much about the music as much as the idea of the identity behind the music. For AI music to be popular in a context where the an actual artist has to be emulated you either have to fool people into believing it's a real human behind it, or antopromoprohize the ai sufficiently to be promoted like a human.
Music has meaning, it's a tool for communicating very complex ideas.
I don't think anthropomorphising something that generates pleasant sounds is going to get you anywhere, by the time you get anywhere interesting, you've become the artist.
Here[1] is an interview with Alex Ebert where he discusses a non lyrical song teaching him about death.
