> Hi Ron, > > Then do you have a "combined" explanation of pitch drop over time? > > > Regards, > Don Rose Quiting me: > With every cycle, bridge caps crush, bridge pins migrate, soundboards with high panel compression flatten, tuning pins migrate in the block. None of these tends to raise pitch in the long run. The universal assumption is that the tuning pins are turning backward, which seems unlikely to me, but none of the affects of cyclic pressures on wooden parts are considered. Ron N
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