Tuning fork and reverse well

Marcel Carey mcpiano@videotron.ca
Fri, 20 Aug 2004 19:40:16 -0400


Richard,

The thing that anoys me with this method is that they start with A3. A
former student from Western Ontario University also told me this was
the way he was thaught. From all my years in PTG, A4 is the one that
should be 440, not A3. By using A3, they are tuning the second partial
of A3 to the fork and then if you strech A4 (let's say 4-2), you end
up with A4 being sharper than 440.

I've had this discussion with Takeda-san, but with the language
difficulties and the fact that one SHOULD NEVER question an instructor
at the Academy ( I only found out too late), I don't think he got my
point.

I know for sure that there is only A4 that the piano's pitch should be
set to.

I sure hope I'm not wrong on this one.

Take care,

Marcel Carey, RPT
Sherbrooke, QC

> -----Original Message-----
> From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]On
> Behalf Of Richard Brekne
> Sent: August 20, 2004 7:14 PM
> To: Newtonburg
> Subject: Reverse Well ??
>
>
> Hi folks...
>
> A couple weeks back I posted a few things about my
> experiences this past
> june at the Yamaha Academy in Hamamatsu. Amoung those was a quick
> reference to the temperment that they require of you there.
>  Off list I
> got a single note from Bill Bremmer.... you all remember
> good ol Bill
> now dont you :):).... Anyways.. it was short and sweet and
> simply stated
> that he thought it sounded like a recipie for the Reverse Well.
>
> I got to thinking about this... and realized I'd never
> gotten around to
> picking apart his reverse well claim (about  Steinways recommended
> temperament)... so much to do all the time. Well I dont
> have Steinways
> recipie.. but I have the particulars from Yamaha... which I
> will give
> below.  If someone can explain how this leads to a reverse
> well tempered
> piano (if it doesn) I'd be very appreciative.
>
> Here ya go.
>
> First off... one starts at A3 and tunes up a 4th then down
> a 5th till
> you come around... two successive 4ths (up) from F to Bb
> and Bb to Eb
> before continuing the pattern to completion with again two
> successive
> 4ths... Gb to B to E.  The manual throws in C40 to F45 in
> the middle of
> this routine.. but my instructors did not and I was scored
> only for the
> notes F33 to E44
>
> Here are the specified beat rates that I mentioned they
> were realllllly
> picky about and very good at judging.
>
>
> 4th beat rates starting with F33 - Bb38 and ending at C40 - F45 are
>
> 0.73 / 0.77 / 0.81 / 0.85 / 0.89 / 0.93 / 0.97 / 1.3
>
> 5th beat rates starting at F33 - C40 and ending at Bb38 - F45 are
>
> 0.56 / 0.59 / 0.63 / 0.66 / 0.69 / 0.73
>
> M3rds ---
>
> 6.5 / 7.0 / 7.6 / 7.9 / 8.6 / 8.8 / 9.7 / 10.4 / 10.8
>
> I do note that in the middle of this there are two M3rds
> with nearly the
> same beat rate... and I note that the increase in beat
> rates for M3rds
> is not exactly the most symetrical thing in the world.
> But... reverse
> well ???
>
> Cheers
> RicB
>
>
>
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