Lim wrote; >. . . The piano is about 6 yrs old and according to the hall people >it gets about 12 tunings a year and the pitch is tuned between 440 >and 442 depending on the user. The 440 to 442 variation in tuning would be a likely causal factor of the instability you are experiencing. While many institutions here in Sydney are into the new management style which is, basically, 'soak up all the hype and spin from the company salespeople hook-line-and-sinker while ignoring the advice of the piano technician', you might be lucky in your situation. If I have to move a piano two cycles for a gig, I will warn the users that the piano might be unstable, despite the fact that I will rub it down and pitch raise if the pitch movement is up. It will still have to be pitch lowered if the movement is down, but you won't need to lower the back scale tension, since it will still have stability if the tension is only slightly higher. It may be worth suggesting that they decide on a standard pitch for their piano, and if some user comes in who request such big pitch shifts as 2 cycles, tell them to arrange their own hire piano for the gig and that you'll gladly set it to the pitch of their choice. I don't believe it would be possible to achieve good stability in any piano if you are hauling the thing all over the place, up to two cycles between tunings. At six years of age, it might be getting to the stage where the strings aren't rendering as well as they might once have, which will also affect your ability to make it stay in tune. It might benefit from a re-string if it is a high use instrument. How's that soundboard travelling? Is it starting to get louder and shorter in the second top treble section? Quite a number of modern performance pianos will have arrived at death's door after six years. Ron O. -- OVERS PIANOS - SYDNEY Grand Piano Manufacturers _______________________ Web http://overspianos.com.au mailto:ron at overspianos.com.au _______________________
This PTG archive page provided courtesy of Moy Piano Service, LLC