On 5/7/21 4:55 PM, Fred Cisin via cctalk wrote: > 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, . . .
I used to play (tuba) just below a fluorescent fixture that buzzed at 120 Hz. Very annoying--a flat B-natural or a sharp B-flat. Messed with my head. --Chuck
