Catching up wit a couple of pages of posts...
I think there were some mistakes in numbers back there along the thread.
My hearing is noticeable poor. Bad enough that if we converse, I may have to ask you to repeat yourself here and there, and, if there is a background noise like a crowded room, I will hardly hear at all.
According to last test, it rolls off from 8khz. Most healthy-eared adults can hear much more than that, with the theoretical maximum, probably only seen in youngsters, of 20khz.
Pointy-hat medieval scientists would only be relevant to the subject if they had invented sampling theory, or if they had had any form of digital music. Science is not trying to explain digital music: it invented it.
Sampling theory is not the explanation of the music: the music exists because of the sampling theory.
Somebody else said that, and I wish I could remember their exact words, because they put it better.