[CAUT] Wire Stretch

[Keith Roberts]

On 4/29/07, RicB <ricb at pianostemmer.no> wrote:
>
> No John
>
> He does not just use Pythagoras' theorem just as you did.  And if you stop
> up and look closely I am sure you will understand this.  When you change the
> deflection you change three things... its length, tension, and frequency.
> The new length you can calculate just as you did.  But that leaves you with
> two unknowns... the new tension and the new frequency.
>


No Rick,

the piano is retuned to the proper frequency after the recalulation of
length. Then you have a bunch of things that are not unknown anymore.

You really don't think a bunch of piano tooners are going to hammer a string
0.5mm down into the bridge and not tune the dang thing, do you?

Keith Roberts
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