I'd be very skeptical that AI would worsen the situation with music. For example, many pop music titles in last decades incorporate the same millennial whoop over and over and over again. I seriously stopped following pop music a long time ago and I can't imagine that AI can make it any more generic if it tried. I don't see a threat for non-generic indie music. AI is good at the generic stuff, as it usually statistically averages out the inputs.