String noises revisited

[Kazuo Yoshizaki]

I recently had this problem with an Essex grand although I don't know
if this is the problem that Allen is facing now. It had a noticeable
jing with forte. I loosened the strings and 'dressed' the inside of
the agraffes by tweaking the strings with a string hook, and the noise
was gone.

On Thu, Jul 10, 2008 at 1:33 AM,  <BobDavis88 at aol.com> wrote:
>
>
> Allen, I'm still thinking about this, and, although I don't know if it
> relates to the Hamburg pianos, there was a run of New York pianos in the
> seventies that had a poor agraffe profile. That is to say, the shape of the
> inside of the agraffe did not make a good termination. I have a couple of
> D's that exhibit this in the tenor. We restrung one, changing the agraffes,
> and it really cleared up the high metallic whistle. Inspecting the old and
> new agraffes under magnification really showed up the difference.
>
> On the other D, increasing the draft angle slightly by putting a center pin
> under the string (on the counterbearing felt) made a big improvement,
> although we'll still eventually want to replace the agraffes.
>
> Let us know when you find out for sure what it is.
>
> Bob Davis
>
>
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