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<div><span class="gmail_quote">On 4/29/07, <b class="gmail_sendername">RicB</b> <<a href="mailto:ricb@pianostemmer.no">ricb@pianostemmer.no</a>> wrote:</span>
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<div text="#000000" bgcolor="#ffffff">No John <br><br>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.
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<div>No Rick, </div>
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<div>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.</div>
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<div>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?</div>
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<div>Keith Roberts</div></div>