List, Does anyone have good information on an acceptable range of tuning pin torque for good tuning stability. My interest is in trying to set an 'objective' borderline for assessing grey market pianos and so-called remanufactured pianos when our Association members do pre-purchase inspections. We also have some support from the retailers association to set some guidelines for presentation of second hand instruments. I would be grateful for answers to all or any of the following: 1. What is an acceptable range for tuning pin torque consistent with good tuning stability? 2. Are there any significant variables to take into account? ( I'm wondering here whether bushed/non-bushed/open wrest planks may differ significantly. ) 3. How is it measured, ie. what tool and what technique? ( I seem to remember hearing that the measurement must be taken while turning the pin anti-clockwise or pitch lowering.) Geoffrey Pollard Sydney Conservatorium of Music Sydney, Australia. Geoffrey Pollard Piano Technician Sydney Conservatorium of Music
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