Hearing beats

[jason kanter]

There is no 3:1 octave. That's a twelfth. You can set D3 to A4 as a 3:1
interval, but for A3 you are limited to 2:1 or 4:2 or even 6:3.
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jason kanter . piano tuning/regulation/repair
bellevue, wa . 425 562 4127 . cell 425 831 1561
orcas island . 360 376 2799
[see historic temperaments at www.rollingball.com]
----- Original Message ----- 
From: "Jenneetah" <yardbird@vermontel.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Tuesday, August 24, 2004 8:33 AM
Subject: Re: Hearing beats


> At 3:52 PM +0100 8/24/04, Richard Brekne wrote:
> >Depends on which A you tune first.... yes ??  If  A4(1) is set at
> >440, and you execute your F3(5)--A3(4)-- F3(5)--A4(2) check then you
> >install an A4(1)440 and a slightly higher A3(2).
>
> Yes, but the bottom line is that when the oboist goes looking for
> A440, they'll look for it at A4(1). Your 2:1 octave will install A440
> on A3(2). However if when you move up into the treble with your
> octaves, the octave you're laying down is something other than a 2:1,
> A4(1) will be pushed sharp of the reference A440. Oboists and
> flautists notice that kind of thing.
>
> That's why, when I move from the initial A4 to the next-step A3, I do
> it with the octave I know I'm going to use at the beginning of the
> march up through the treble: a 3:1 octave. If A440 moves, it's
> because of the board.
>
> Then again if your using an ETD, you can tune into the weather
> channel for the 45 seconds it takes to execute the spreadsheet.  <g>
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