In my last message I forgot to say that I POUND the keys and even then the pitch slips. It is NOT due to instability ( not in the NORMAL sense). Obviously instability is there because the pitch doesn't hold. I sure do EXITE the string however !!! I tried it by playing softer too but it doesn't make a difference. I also noticed that in pianos with very little angle deflection in the string ( over the "V" bar or CAPO Bar ) this problem also sometimes occurs. -- instability in the tuning of unisons. Is there a connection ? Bill Gerow
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