Settling Strings in PR, was: Muting high treble

[Farrell]

I'm not sure this is what Isaac was referring to, but when I am doing a pitch raise of, let's say, 50 cents, most notably in the treble after your initial pull up to target pitch, each time you strike the key firmly, the pitch will drop. Now I think many folks say to just pull the string up to pitch and move on. I usually take the time to bang on the key a bit, during the pitch raise pass, until the string becomes stable. I don't worry about being overly accurate with exactly what pitch I leave the string at (just shooting for pitch raise accuracy - within a cent or two), but I do pay attention to pitch stability. On some pianos, this takes a fair bit of time and effort.

I'm making the assumption that this will give me a much more stable final tuning. Does the 10-to-15-minute pitch raise crowd do this string pitch settling during the tuning pass? If you are pulling up the pitch of the string during tuning, I should think it would have to affect the other strings - each time you turn that pin you are increasing tension on the string. What do others do with regard to this phenomena of repeated pitch drop after first raising the pitch of a flat string?

Terry Farrell
  
----- Original Message ----- 
From: "Paul Chick (EarthLink)" <tune4@earthlink.net>
To: <pianotech@ptg.org>
Sent: Sunday, March 24, 2002 8:18 AM
Subject: Re: Muting high treble


Why do you want to settle unisons during a pitch raise?

Paul Chick
----- Original Message -----
From: "Isaac OLEG SIMANOT" <oleg-i@wanadoo.fr>
To: <pianotech@ptg.org>
Sent: Sunday, March 24, 2002 2:15 AM
Subject: RE: Muting high treble
>
> I usually tune unisons as I go, but for PR where I use the strip method,
so
> the pass is the fastest , thanks to J. Coleman video where he PR a U3 I
> guess in 12 min.
>
> I suspect the PR with unissons tuning is better and stable, but I am
always
> reluctant to begin to tune at A0 without any control on temperament
before.
> Beside, the rare times I've done it it worked as a charm. Problem is that
it
> is boring to PR and tune unissons at the same time, so the strip method
> allows me to make it quick and dirty as wanted, and not to loose time by
> settling unissons as i go up the scale while PR (that I can't stand doing
> even if I don't want to !)
>
> Regards
>
> Isaac
>
>
>
> > -----Message d'origine-----
> > De : owner-pianotech@ptg.org [mailto:owner-pianotech@ptg.org]De la part
> > de David Love
> > Envoyé : samedi 23 mars 2002 21:26
> > À : pianotech@ptg.org
> > Objet : Re: Muting high treble
> >
> >
> > I think you are better off tuning unisons as you go anyway.  If you are
> > setting the temperament aurally and need to use a mute strip for the
> > temperament octave (or two) then pull the unisons after setting the
> > temperament and tune unisons as you go the rest of the way.  I think it
> > makes for better stability.
> >
> > David Love
> >
> >
> > ----- Original Message -----
> > From: "Isaac OLEG SIMANOT" <oleg-i@wanadoo.fr>
> > To: <pianotech@ptg.org>
> > Sent: March 23, 2002 11:30 AM
> > Subject: RE: Muting high treble
> >
> >
> > >
> > >
> > > On some pianos the coupling effect put the unisson sharp after 1
second
> > > ringing.  the EDT will read an unison sharper than the one string
alone
> > > sounding, because you have to wait to have a clear pattern.
> > >
> > > That can depend of the way the unisons are done too.
> > >
> > >
> > > Isaac OLEG
> > >
> > >
> > >
> > > > -----Message d'origine-----
> > > > De : owner-pianotech@ptg.org
> [mailto:owner-pianotech@ptg.org]De la part
> > > de Don
> > > Envoye : samedi 23 mars 2002 07:30
> > > A : pianotech@ptg.org
> > > Objet : Re: Muting high treble
> > >
> > >
> > > Hi Jay,
> > >
> > > I have tried to measure the effect you are speaking of. It would be
rare
> > > for it to be as large 2 cents and it is inconsistant from piano to
piano
> > > even with the same make and model. I suspect if you are having
> > > this sort of
> > > pitch drop after doing a unison that plate flex (pitch correction) is
> > > making the difference.
> > >
> > > At 03:03 AM 3/23/02, you wrote:
> > > >I thought this phenomenon is just the opposite.  The pitch
> > > sounds 2-4 cents
> > > >sharper when the strip mute is in, compared to when it's out and
> > > after the
> > > >unisons are tuned. Isn't this common and tuners must compensate?
> > >  The pitch
> > > >difference is obvious when comparing a muted trichord - hearing just
> one
> > > >string compared to the overall pitch after tuning its two unisons.
> > > >
> > > >Jay Mercier
> > >
> > >
> > > Regards,
> > > Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T.
> > >
> > > mailto:pianotuna@accesscomm.ca
> > > http://us.geocities.com/drpt1948/
> > >
> > > 3004 Grant Rd.
> > > REGINA, SK
> > > S4S 5G7
> > > 306-352-3620 or 1-888-29t-uner
> > >
> >
> >
>
>