[pianotech] concert pitch

[paul bruesch]

STDD? Standard Tuning Deviation Dysfunction? Simply Terrible and Decidedly a
Disaster? IMWTK.

On Tue, Apr 28, 2009 at 9:18 AM, Andrew & Rebeca Anderson <
anrebe at sbcglobal.net> wrote:

> Seems to be mostly A4=440 although some traveling orchestras request 442.
>  I keep the non-climate controlled D at 441 per Steinway recommendation for
> ease of accommodating requests.  More so because shining hot lights on it
> and filling the hall up will quickly bring the piano back to 440 and even
> lower.  I've thought about keeping it at 442 but this 5yo D already has an
> obvious (finger in your eye) case of STDD and increasing tension only
> exacerbates the problem.
>
> I keep the climate-controlled one at 440 and the stage-manager has been
> thorough about keeping it plugged in.  It doesn't drift, probably because it
> is already warm when the lid is opened.  Interestingly enough, it is about
> the same age and doesn't have noticeable STDD.  Maybe a stiffer batch of
> spruce or perhaps, the Dampp-Chaser system does what it is advertised to
> do...
>
> Andrew Anderson
>
>
> On Apr 28, 2009, at 9:01 AM, Renee Ingeberg wrote:
>
>  I was wondering what the standard concert pitch is these days. In certain
>> parts of the world, there are different meanings on the subject. What is the
>> concert pitch for orchestras in the U.S.?
>> The question comes up every once in a while...and is always followed by
>> some discussion.
>> Also, does anyone know how much one raises the tension ( in kilograms) in
>> a grand when raising the pitch from 440 to 442?
>>
>> Renee
>>
>>
>
>
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