Best Tuning Strategy using SAT III

[David Ilvedson]

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I'm still the dinosaur, I guess.   I don't use any over pull during pit=
ch raises...and a string will still break on occasion.   I can't imagin=
e bringing a piano from -100 cents to +25 cents without serious string =
breaking...
David I.




Original message
From: "Paul McCloud" 
To: Pianotech 
Received: 9/12/2005 7:40:51 AM
Subject: Re: Best Tuning Strategy using SAT III


I agree with Joe Goss.  I also measure A2 and divide by 4, and add the =
result.  I tune all the strings of the bass with this.  With the except=
ion of the last 2 bass notes on the tenor side, everything gets extreme=
ly close.  I strip it off to do this, pulling in the unisons afterwards=
.  
    In the plain wires, I measure the low tenor notes and divide by 3. =
 I do string by string with unisons here up to the top. 
    However, I have two things I do to modify my method.  
    First, I subtract a cent from the number I get when I divide by thr=
ee.  I.e., if I'm 27 cents flat, I divide by three and add 8, not 9.  I=
f I don't do this, it gets too sharp here.
    Second, I only remeasure once in the tenor section.  If I remeasure=
 more than this, I get too sharp when I'm done.  I just wait until I ge=
t past the break into the treble.  Then I simply divide by 3 again and =
leave it at that.  
    My method requires that I try to be very accurate in my first pass.=
  I spend much more time in the first pass than the final pass.  The fi=
nal pass I strip it off and tune only the center string, bottom to top,=
 then unisons as I pull the strip out.  
    My way, FWIW.
    Paul McCloud
    San Diego
 
 
----- Original Message ----- 
From: Joe And Penny Goss 
To: Pianotech
Sent: 09/12/2005 7:19:20 AM 
Subject: Re: Best Tuning Strategy using SAT III


Hi David,
For me also a good way to check and modify the FAC readings. Aural and =
machine combined.
This of course on a piano that is 10 or less off the 440.
For pitch raises I do the FAC only then measure A2. If  it measures say=
 50 C I enter 25 C and tune from A0 to the first plane wire strings and=
 then go with the 25% raise rewseting at C5 
If a larger than 100C  raise is necessary it is always at least two rai=
ses then fine tune.
I am always astounded at thework that the III can do for me. Almost lik=
e having an airconditioned cab on a hot combine. 
Hammer technique I believe to be a part of the varing results that tech=
s get.
Quick and fast is what seems to get the results that I achieve.
Joe Goss RPT
Mother Goose Tools
imatunr@srvinet.com
www.mothergoosetools.com
----- Original Message ----- 
From: David Love 
To: 'Pianotech' 
Sent: Monday, September 12, 2005 7:42 AM
Subject: RE: Best Tuning Strategy using SAT III


If I=92m seeking accuracy, after the calculation, I prefer to start at =
A4, then tune A3 to see if that critical octave is ok.  Then tune down =
through the bass unisons as you go with checks that can be done with on=
e hand, i.e., octave fifth, fourth, progressive thirds.  Modify with th=
e DOB  on the fly if you need to.  Then tune up through the treble doin=
g the same thing.  
 
David Love
davidlovepianos@comcast.net 
-----Original Message-----
From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On B=
ehalf Of Robert Finley
Sent: Monday, September 12, 2005 4:24 AM
To: pianotech@ptg.org
Subject: Best Tuning Strategy using SAT III
 
Until now I have been performing the FAC stretch calculation/analysis u=
sing the SAT III on the piano and then began tuning chromatically from =
A0 upwards, tuning the single string unisons, and then the two and thre=
e string unisons as I go along, using rubber mutes. I am wondering whet=
her it would be better to strip mute the piano, tune all the single str=
ings, perform checks on the intervals and octaves, and then go back and=
 tune all the unisons.  
 
What would you advise that would produce the best, most accurate and fa=
stest result? Thank you for your help. 
 
Robert Finley

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