pitch rise /was: no tunings, no drivel

[Don]

Hi Duncan,

I also mark down humidty and pitch on each tuning. I live in an area where
humidity fluctuates from 4% to 84% on a yearly basis. Pitch at A4 changes
can be very dramatic. I have measured as much as a 40 cent pitch change at
A4  (A450) (10 hertz), but I have never seen a string break from this change.

At 06:07 AM 05/11/2001 +0200, you wrote:
> Hi Don,
>>I don't think I have ever seen a pianos pitch rise enough due to
>>environmental changes for it to break strings. Has anyone else?
>>
>
>Now, when the pitch is about 444 Hz or above (It depends on the type of
>piano !), I will lower the pitch.
>Here in Holland, the humidity in the air can be quite high. 
>It is not uncommon for piano's , including the brand new ones, to rise or
>drop ,up to 4 Hz. That can be enough to cause a string to break ( I'm
>talking about the highest wound strings) , which occasionally happens in
>spring and the begining of summer.
>For tuners who donot always necessarily tune to 440 Hz, this is something to
>take into consideration.
>
>Duncan


Regards,
Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T.

Tuner for the Saskatchewan Centre of the Arts

mailto:drose@dlcwest.com
http://donrose.xoasis.com/

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REGINA, SK
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