You left out your explanation of what is fundamental about music. You’re saying you have it but you’re holding out? It’s the thing QJ didn’t have. We know that much.
Do you have a “smooth” market vision where all songs are in a big uniform cultural stream that never stops, or changes qualitatively. You would have to cite for that. If music changes it can be better or worse. Or the same for a few data points. But it won’t be identical. So the idea that music is always partially good to a similar ratio is ridiculous.