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Old 07-31-2019, 03:16 PM   #52
Holy smoking keyboard!
Join Date: Feb 2002
Location: London Town
Posts: 5,566
Default Re: New set by Pierre Blanchet

I know most people on this thread know this, but just for the benefit of anyone else - remember that until after WWII, A was not fixed at 440 (indeed, until the ability to measure the speed of the vibration of air, it was not fixed at all).

The point is that we can't know what pitch any particular bagpipe was intended to play at - obviously, we can deduce from the instrument itself, which gets us close, but it's a mistake to think that the maker of Joseph MacDonald's bagpipe intended his low A to vibrate at 440 cycles per second. It's little more than coincidence that some historical instruments do.
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