tuning stability in pitchraises

[Farrell]

Hi Joe. I just re-read through your article (yes it was Dec. '99) and I have
the same question I had back in '99. How does your SAT program differ
significantly from doing an FAC and then pitch raising, or chosing a canned
program for a similar piano and going at it. This I ask beyond your good
advice regarding to do a pass without overpull prior to using the overpull
when there is any doubt regarding string strength. It seems to me you will
always be better off using the overpull judiciously in the various sections
of the piano as so many are perhaps only a bit flat in the bass, moderately
flat in tenor, and more flate in treble.....or whatever (of course always
being wary to not use too much overpull so as to be breaking or
overstressing strings - the most I will ever do is about 15 to 20 cents
overpull, i.e. correcting a 50 to 75 cent flat pitch). How does your program
improve over measuring FAC/canned-similar and using the pitch correction
properly?

Terry Farrell

----- Original Message -----
From: "Joseph Garrett" <joegarrett@earthlink.net>
To: <pianotech@ptg.org>
Sent: Sunday, September 02, 2001 4:28 AM
Subject: tuning stability in pitchraises


> Paul,
> It's obvious that your RPT is still a few years behing in the reading of
his
> Journals. The article I did, was based on the wonderful efforts of Dr.
> Sanderson. His research prompted me to persue the knowledge further, and
> hence a refined method of pitch raising w/o overstressing the strings,
> structure and myself. Check your back issues, (I think it was December of
> 1999, but the remember don't work that well these days. <grin>). I have an
> upgrade for the numbers that is available for the asking.
> Regards,
> Joe Garrett
>