---------------------- multipart/alternative attachment On 26-mrt-05, at 18:49, Alan wrote: > This question is so basic and naive, I fear the wrath of the list so I=20= > will ask it annonymously ... > =A0 > Customer asked: "I understand that humidity change is the principle=20 > cause for going out of tune, but if it gets flat than sharp, etc., why=20= > is the long term trend always flat? In other words, if it's a fact=20 > that the tuning pins are slowly turning counterclockwise with playing=20= > and weather, why can't you just lock them in place, somehow,=A0so the=20= > piano stays close to pitch all the time?" > =A0 > I stood there staring stupidly and could not conjur a=20 > sensible-sounding=A0answer. > =A0 > What would YOU say? > =A0 > Mystery Writer > Salem, MO I would tell that customer that the strings are like tight elastics. If there is one thing a tight elastic wants, it is to get rid of its=20 tightness, its tension. This happens slowly over time. If you prepare a piano for the north pole, i.e. you tune it a couple of=20= times very professionally and nobody will play it, it will probably be=20= locked in an eternal cold dryness and the wood will not move after some=20= time because all wooden parts will have settled to the extremely low=20 humidity. You then do a last tuning and you step in your kayak, your dog sled or=20= your coffin. The tuning will go down slowly over time. Maybe after a hundred years=20 it will be completely flat to zero tension? who knows........... my euro cent friendly greetings from Andr=E9 Oorebeek www.concertpianoservice.nl "Where music is no harm can be" ---------------------- multipart/alternative attachment A non-text attachment was scrubbed... Name: not available Type: text/enriched Size: 1861 bytes Desc: not available Url : https://www.moypiano.com/ptg/pianotech.php/attachments/9b/8a/8e/3e/attachment.bin ---------------------- multipart/alternative attachment--
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