pitch rise /was: no tunings, no drivel

[D.Martens]

 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?
>

I always write down the pitch of every piano I have tuned, and leave a note
inside the piano. I also write down to what pitch the piano has risen or
dropped to by itself, as I found before the tuning.
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.  (Hey ! we're
living below the sealevel here ! There's a lot of water in holland  !)
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








>Hi Duncan,
>
>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?
>
>At 06:35 AM 05/10/2001 +0200, you wrote:
>>Hi Don, Dirk and others,
>>
>>5. the pitch is dangerously high, and there's risk of strings breaking;
>
>
>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/
>
>3004 Grant Rd.
>REGINA, SK
>S4S 5G7
>306-352-3620 or 1-888-29t-uner