Hi Patrick, I feel it is more to do with the humidity, being different. I have noticed the FAC numbers changing with the seasons, on pianos that the strings were stabilized on. Regards, John M. Ross Windsor, Nova Scotia, Canada jrpiano@win.eastlink.ca ----- Original Message ----- From: "Patrick C. Poulson" <pcpoulso@pacbell.net> To: "Pianotech" <pianotech@ptg.org> Sent: Tuesday, March 02, 2004 9:54 PM Subject: Changing Harmonicity > Hello All: I have a question about new strings and changing harmonicity, > which may have been covered before. I retuned an upright that I restrung > last year. The last time I tuned it I noted down the FAC numbers on the > service record. I remeasured those numbers today, and they had all dropped > an average of 2 cents. I wonder if others have noticed this happening, and > if so, how much change they noticed and an explanation for this phenomenon. > I hazard the guess that it has something to do with the stretching going on. > This is the 8th tuning I gave the piano after restringing. The last time I > tuned it was in September, when humidity was somewhat here up in the Sierra > foothills. Thanks in advance. > Patrick C. Poulson > Registered Piano Technician > Piano Technicians Guild > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives >
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