Another thought though.
That recording was just thrown together at home in a spare afternoon.
But, If I had gone to the expense of booking a studio, creating a finely honed recording, beautiful artwork, distribution and pressing costs, etc, etc. I'd be really annoyed if I found it on one of the sights we've been discussing. For free.
Studio time doesn't grow on trees, and it's not exactly cheap either!
If I had paid for it all myself, (which a lot of artists have to nowadays.)I would be quite frankly pissed off not to be able to recoup my outlay, before even contemplating any possible profit!