Pitch Raising Techniques

[David Ilvedson]

I likewise don't like to stress the piano above 440 for the first pass, except today I did a pitch raise/tuning, about -20 cents.    At the tenor break I decided to offset + 4 cents and all hell broke loose...the plate broke, it started to rain....what a mess..............................I'm just kidding.   I did have to come down to pitch on the second pass in general, maybe a cent or two...

David I.



----- Original message ---------------------------------------->
From: Richard Brekne <Richard.Brekne@grieg.uib.no>
To: Pianotech <pianotech@ptg.org>
Received: Thu, 02 Dec 2004 08:47:27 +0100
Subject: Re: Pitch Raising Techniques

>Agreed Terry.

>As with so many of these kinds of discussions, a more precise 
>clarification of terms clears up most of the apparent difference in 
>views. In this case, what one means by overpull.  For my own part, I 
>simply dont like the idea of tuning the first pass higher then  442. Nor 
>do I see the need to stress the instrument thus. I'll be the first to 
>admit I have no hard data or science to back up this feeling. It just 
>doesnt  seem to me to be a good idea, especially when its  simply not 
>necessary to get a good stable tuning at pitch in a very reasonable 
>amount of time.

>Cheers
>RicB

>Farrell wrote:

>>Richard wrote:
>>
>>  
>>
>>>Actually, you can usually get a 100 cent flat piano at 440 pitch within
>>>3-4 passes and never go above 442 to do it. I suppose you can call that
>>>overpull, but thats not what folks normally mean when they use the term.
>>>    
>>>
>>
>>Agreed. I would call that about 8 cents overpull (or 8% for a half-step-flat
>>piano) in the mid-section of the piano! And actually, with that amount of
>>overpull, you might be about 18 cents flat in the middle of the piano after
>>the first pass, so maybe only a 5-cent overpull on a second pass would be
>>required to get up to 440! You shouldn't need the extra two passes (well,
>>maybe one more pass in the high treble if you are only going 8 cents sharp).
>>
>>That's what overpull is - tuning a string a calculated amount sharp to
>>achieve a targeted pitch. That's what I call overpull. So what do folks
>>normally mean when they use the term?
>>
>>I don't care if it's one or two cents overpull - if you are doing it to get
>>the piano to end up at a certain pitch, then those one or two cents are
>>overpull.
>>
>>At least in my book.    :-)
>>
>>Terry Farrell
>>  
>>

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