[Projoy] But -- as they also point out, I'm glad to see -- the causation could easily run the other way. [Bm, Raak, Darren, et al] This is a *great* discussion; one from which I am really learning.
I had perfect pitch as a child, but not being a musician, I've never used it, and the skill seems to have decayed. I just tried whistling a middle C, and it turned out to be a tone flat. But maybe I'm channelling Baroque pitch, concert pitch having been invented to boost the E-string industry.
I'm not surprised you can't whistle Middle C; you'd need a head the size of a space hopper to do that. Do you mean an octave higher, or maybe even two? As to baroque pitch, I once heard Handel's Messiah sung to the accompaniment of old instruments, as it turned out. "Why are these buggers in D flat?", I was muttering until the penny dropped. Baroque pitch is about 3/4 of a semitone down on concert. (A = 422 or so).