Pitch Raise, was: Standard Pitch

[Piannaman@aol.com]

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Hello Corte,

If I'm pitch-raising or tuning a new piano(I seem to be doing alot of these 
lately), I will generally play the upper treble notes really hard at least once 
 up and down the scale from the treble break before I ever set hammer to pin. 
 Dogs will usually make their way into the other room during this procedure.

This gives me a better idea of where the tension was/is, as most of the time 
on mass-produced pianos, the notes will sink dramatically in pitch.  It will 
then be easier to calculate how much you'll have to pull it up when you start 
turning pins, and the piano will be more stable in the long run.  It can take 
forever if you keep bringing it up, then beating it down.

Dave Stahl

In a message dated 10/13/03 6:10:40 AM Pacific Daylight Time, 
cswearingen@daigger.com writes:
> 
> 
> 
> Hi Kevin,
> 
> The only problems I sometimes have after my initial pitch raise is that,
> during the fine tuning, the extreme treble (depending on the piano) can be
> knocked down 5-6 cents with hard blows.  To keep this from being a problem,
> I simply bring the pitch back up while repeatedly hitting the key to
> stabilize the note.  This seems to work quite well for me.  Maybe I should
> also note that I use an impact hammer for both pitch raising and fine
> tuning.
> 
> Corte Swearingen
> Chicago
> 
> 
>                                                                              
>                             
>                       "Kevin E. Ramsey"                                      
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>                       <kevin.e.ramsey@c        To:       "Pianotech" <
> pianotech@ptg.org>                 
>                       ox.net>                  cc:                           
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>                       Sent by:                 Subject:  Re: Pitch Raise, 
> was: Standard Pitch            
>                       pianotech-bounces                                      
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>                       10/10/2003 09:13                                       
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>                       Please respond to                                      
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>                       "Kevin E.                                              
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>                       Ramsey"; Please                                        
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>                       Pianotech                                              
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> 
> 
> 
> Corte, let me ask you this; do you ever find yourself doing the second
> pass, and you do a test blow that ends up being five or six cents flat?
> 
> The time for test blows is indeed after the pitch raise (and during it, but
> definately after it also) . The speaking length may indeed be at pitch, but
> if you don't have all segments of the string up to tension, it's going to
> go south.
> 
> After doing a pitch raise, I don't really feel like yanking the strings up
> all over again.
> 
> Just something for you to think about while you're out there tuning, that's
> 



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