It doesn't seem to exist in my universe.
Okay, I'm just messing around. I know what Spotify is and I deleted it from my internet a long time ago.
Most of my music is purchased on CDs from artists I know are real, some of it directly from artists I've seen live, in person.
I have a collection of LPs and cassettes from my youth too
These CDs get ripped to the music library on my computer for my own personal use. You can store quite a bit of music on a modern SD card to bring with you wherever you go.
AI generated music makes me sad. If AI is someone's only means of expressing themselves, how can they ever be certain it's their own expression, that they're not being led down the garden path by the AI?
The voices in my own head are a lot more real than anything AI might produce.
A truer expression of one's own self might be to simply publish the prompts that generated an AI song, story, image, or movie, and keep whatever slop the AI generates to yourself.
I've played with AI a bit and it has never taken me where I want to go.