Schaff Tuning Levers - slap tuning

[Joe And Penny Goss]

Hi Susan,
 "It is much easier to pull a rope than to push it."
I can not remember who said that but the qoute got me to thinking about why
we are told to raise above pitch and then lower to release and equalize the
tension in the string segments. I also use the quick pull method in most
tuning situations
 and find that when giving a good strong test blow there is seldom a change
in pitch. However with the smooth pull that I use in the high treble there
often is.
Could this quote be comming from esteemed teachers who use a smooth pull?
My theory is that with a quick short pull there is an automatic return of
the energy or force that equalizes the string segments that settle the pin
and string at that pitch so that only a test blow is needed to confirm the
pitch.
Also the placement of tuning lever, length of tuning tip and angle of head
enter into this equation of length of tuning pin above the block, and the
pins angle, torque on the pin and rendering resistance etc.
This I think is why no two pianos feel the same as we choose to tune with
mostly the same tuning lever for most pianos.
Joe Goss
imatunr@srvinet.com
www.mothergoosetools.com
----- Original Message ----- 
From: "Susan Kline" <skline@peak.org>
To: "College and University Technicians" <caut@ptg.org>
Sent: Friday, November 07, 2003 9:38 AM
Subject: RE: Schaff Tuning Levers - slap tuning


> At 10:15 PM 11/6/2003 +0100, you wrote:
> >What I've find when getting used to the slap, is that I often dose
> >right so one is enough, for all the medium part of the piano (I avoid
> >it in the bass).
>
>
> Hello, Isaac
>
> I seldom do just one slap, unless the note is very close. What I
> do is a series of small slaps, so the note jumps up in small amounts
> each time. Once the note is moving in a series of uniform and rhythmical
> steps, all I need to do is to stop when it arrives. This is for
> pianos which need a pitch raise, so there is some distance to
> come. Of course, I make the blows heavier if it has a long
> way to go, and I ease up on the force as it arrives.
>
> I usually work the pins a little on the second pass, and don't
> slap as much, unless the pins are very tight or jumpy.
>
> You and Phil talked about using the left hand, with the hammer
> at 10 o'clock. I can't quite picture this. You'd be hitting it
> upwards and toward the block? It seems to me that hitting
> downwards is easier. Of course, sometimes I find myself
> having to hit from left to right, with my right hand.
> That's not very convenient.
>
> I'm not sure that I see the difference between "push" and
> "pull" when it comes to slapping.
>
> Best,
>
> Susan
>
>
> _______________________________________________
> caut list info: https://www.moypiano.com/resources/#archives