I could see myself listening to AI music in Spotify, not as the main act but at least as a Plan B.

For example, I like a specific music genre, Italodance, which was popular in the 90s and then disappeared. The problem is that I have listened to all of it, as far as I know. No more is being made. If an AI model could make more for me, with decent quality, I'd probably listen to it.

If you listened to all of it chances are ai will not be able to generate anything that sounds remotely different than what you already are familiar with.