7 May
2021
7 May
'21
11:55 p.m.
Hmmm. If they ever use single phase, instead of 3 phase, . . .
A4 (A above middle C) is nominally 440Hz, but not everybody agrees.
NY Phil uses 442, Boston uses 441, and many argue for 432.
But, 400 would be A-flat. With a constant A flat droning in the
background, . . .