Pitch Raise

[Joe And Penny Goss]

Hi Ron,
Never done a aural pich raise , so I'm trying to understand in my head what
you have said.
If the beat rate for example is 4 per second flat to A 440 would you raise 1
beat sharp for a 25% above pitch raise?
I use the SATlll and use its pitch raise functions with a little tweeking,
all to get in old uprights and grands 15% in the bass, 25% tenor, 30% about
C5 and up.
The exception to this is small pianos especially ones with laminated sound
boards.
10% bass, 16.5% or about 2/3 of 25% and 25% about C5 up. This is easy to do
by taking off the numbers that show when one measures the flatness of a note
and changing them and setting the unit.
This will not work when the piano has been neglect for years and the pitch
is wildly flat or sharp all over the place. Also there is more problems with
the pitch holding when one does a pitch lowering rather than raising.
Joe Goss RPT
Mother Goose Tools
imatunr@srvinet.com
www.mothergoosetools.com
----- Original Message ----- 
From: "Ron Nossaman" <rnossaman@cox.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Saturday, January 07, 2006 10:45 AM
Subject: Re: Pitch Raise


>
>
> > I am a novice tuner learning to tune aurally. I am confused as to how to
> > do an effective aural pitch raise.
>
> It'll probably take you longer to learn to do an effective aural
> pitch raise dependably than to learn to tune acceptably.
>
>
> > How can you accurately judge whether a piano needs a pitch raise
> > (without an electronic guage)?
>
> I don't think you can, accurately, with any method. So much depends
> on the situation, and every tuner has a different threshold. Just
> figuring out where the piano is in pitch is guesswork. If you live
> in a part of the world that has seasons, you'll find often tuned
> pianos that are very close in the A-4 area, five beats flat or sharp
> in the low tenor, and the same in octave 6. The bass will be pretty
> close, and the high treble could be anywhere. Most of your clientele
> won't be too interested in paying for pitch corrections twice a
> year, so you do the best you can in one pass.
>
> At A-4, each beat per second is four cents. I tune school systems
> where the pianos are off 4+ beats (16+ cents) sharp or flat at A-4.
> They get one pass. While this won't produce concert level tuning,
> it's surprising how nice sounding a tuning you can produce like this
> with practice, which is good, because that's all they will get under
> these circumstances.
>
> In other venues, a 4 cent or smaller change will require a pitch
> adjustment pass.
>
> Bottom line is, there isn't a rule. Your judgment is made on the
> likelihood of your meeting the requirements of the tuning in this
> instance, on this piano, in one pass.
>
>
> > Once you determine a pitch raise is necessary, is there a particular
> > sequence to use when pitch raising? I am aware of the general guideline
> > of overshooting a string by half the amount that it is flat. Do you do
> > this on every note, or is there a certain graduation as you go to the
> > bass and the treble?
>
> I start with the overshoot at the fork, and set a decent, but not
> overly fussy temperament. I then chase the overshoot beat rate by
> octaves up to the treble break, and down to the low tenor. The
> overshoot in the bass will be less, or none. Overshoot through
> octave 6 will be more than in the center, tapering to none at the top.
>
> Again, everyone slays their pitch correction dragon in their own
> fashion. You'll just have to keep paying attention and adjusting
> your approach until you find a set of processes that work for you.
>
> Ron N
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