Hi Ron, Both flat and sharp. They were visably leaning towards the tail when the humidity levels were low. This is from 1999 so I don't have any more than recollections to share really. Definitely *not* scientific. At 03:33 PM 01/11/2004 -0600, you wrote: > >>Visual inspection of a piano in an art gallery with 3 zones. Zone one no >>control, Zone two buffer zone--some control, zone three tightly control >>humidity levels. >> >>Piano had been fully serviced to try to improve stability (tapped, >>tightened, coils set, etc.) >> >>There was a correspondence to pitch change vs. humidity levels. The piano >>was moved from zone to zone and was/is a small Korean product (Howard 171 >>cm piano). It was equipped with a damppchaser system (pre bottom cover), >>and use of humidity control was sporadic. >> >>After 18 tunings pitch change at A4 was +10 cents and worst note was +39 >>with room humidity of 27% (dc *not* in service, and piano in zone 2). > >Don, >You lost me. What was the visual inspection, and how does all this indicate >to you that the pins moved and pulled the piano sharp? > >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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