𝔊𝔯𝔦𝔪𝔢𝔰: “I'll split 50% royalties on any successful AI generated song ”

Uhmm, bad news for that concept... is that the economic value of something that's in overabundance is zero. AI will cause art, music, voice acting and so on... all to go into overabundance.

Economy is, as its name hints, about organizing the efficient distribution of scarce resources. We have lots of air, but no one is making a ton of money out of air, because no one is trying to buy some. They just breathe in.