Downbearing direction/string breakage

[Erwinspiano@aol.com]

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But now I wonder if UPward blows from a grand would be more likely to break 
strings, over time, compared to an upright. That would be a tough one to 
extrapolate, I think.

Terry Peterson
    
Hi Terry
 I can't see why it would make any difference at all. String breakage is 
caused by metal fatigue  which is often related  to over driving of the strings 
with hard hammers period. These days the problem is exaccerbated by holding the 
sustain pedal down continually which causes wild string osillations while 
being strick repeatedly by same hardened hammers. Usually under these conditions 
string break at the agraffes/terminations.
   Regards --Dale

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