Quickie Pitch Raise

[Farrell]

No, it brings each note up to an average of  A440 tension. I did this twice
today and checked the pitches of a number of strings after the quickie pitch
raise was complete. Results were pretty consistent with, in the plain wire
tricords, the right and center strings might be six cents flat each, and the
left string would be 12 cents sharp - on the tuning pass the left string is
lowered 12 cents and the other two strings are raised 6 cents each,
resulting in no net change in tension.

The first piano was about three or four cents flat on average. The tuning
came out pretty darn good. The second piano was five to 10 cents flat to
begin with - one tuning pass resulted in a tad sloppy of a tuning. I'm quite
happy with this method, but I think it is best to restrict its use to less
than 5 cents. It is especially good when just a section is a bit flat - you
can adjust that overall tension up to target in just a minute or two.

Terry Farrell

----- Original Message ----- 
From: "Cy Shuster" <741662027@charter.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Thursday, January 15, 2004 6:06 PM
Subject: Re: Quickie Pitch Raise


> Doesn't this only bring the monochord section up to "A440 tension", the
> bichord section halfway up, and the trichords only 1/3 of the way up to
> tension?
>
> It still might be a better approach, but you can't raise up less than half
> the strings and claim that all the tension is up to where it's going to
> be...
>
> I wonder if different patterns (bass first, etc.) are better suited to
> different plate designs?
>
> --Cy Shuster--
> Rochester, MN
>
> ----- Original Message ----- 
> > > At 08:45 PM 1/14/2004 -0500, you wrote:
> > >> By doing that [raising one out of three or two strings], the total
> tension on the system is up to A440.
>
>
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