I have tremendous respect for serious concert musicians. I was never a professional musician but I was an extremely serious amateur musician for over a decade and my life is full of people who could trivially be professionals if, to your point, it paid better.

But I find the contention that elite musicians are “an order of magnitude” more capable as concerns fluid intelligence and capacity for detail than the folks at (to name one example) DeepMind to be just silly.

Now the guy composing those pieces after going deaf, yeah, that’s in this whole other world called “genius”.

Playing violin well enough to be called a profession is an extremely demanding task both physically and intellectually, that’s been measured every which way, but let’s not get carried away.