Hi Ron, I have observed the tuning pins moving on some less than spectacular pianos due to humidity changes. Perhaps that's one of the "missing" parts of the equation? At 07:41 AM 01/11/2004 -0600, you wrote: > >>Hi Ron, >> >>If this is so why are the tenor plain steel strings the very most affected >>by humidity change? > >Hi Don, >The plain wire low tenor strings are typically at a much lower break%, and >go out of tune farther for a given tension change. Wrapped strings at a >higher break% down there are much less reactive. They are also in an area >of the board that DOES change crown height more than the treble. >Interestingly, the low tenor changes more than the math of the bridge pin >angle, bridge height, and soundboard crown height account for, so more is >happening here than is being covered by our simple speculations. > >Ron N > >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives > > Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. Non calor sed umor est qui nobis incommodat mailto:pianotuna@accesscomm.ca http://us.geocities.com/drpt1948/ 3004 Grant Rd. REGINA, SK S4S 5G7 306-352-3620 or 1-888-29t-uner
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