At 12:32 pm +0100 29/4/07, RicB wrote: >Hi JD > >Would you mind sharing how you calculated this ? By Pythagoras' theorem the _maximum_ extension of the original length is calculated thus: l_hyp = sqrt((l^2)+(h^2)) where l_hyp is the length of the hypotenuse of a triangle of base l and height h. Having calculated the altered length you can use the formula here to calculate the frequencies for the two different lengths: <http://strings.pianomaker.co.uk/formulae.html> The precise figure would depend on the original gradient of the speaking length and could vary between zero and the maximum I gave, but the quantity involved is so small as not to matter. A little basic mathematics saves a lot of chatter. JD
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