This is not actually music. Music is a cultural practice, this is just organised sound. Maybe one day AIs will be able to participate in cultural practices like humans do, as sentient beings, but current generative AI models do not.
> That is not a water bottle, it's a domesticated puddle. Many (most?) people don't care about the artists behind songs (even less so about their culture). They care about the "organised sound" being enjoyable to hear. And to them, AI music is just as valuable as manual music. Gangam style didn't become popular because people cared about PSY. It didn't become popular because of its thoughtful lyrics and insightful me…
That's a pre-requisite for becoming popular, but not why it became popular.
Just because many people don't know or understand anything about music doesn't mean music doesn't exist.