[pianotech] Tuning the duplex sections

[PAULREVENKOJONES at aol.com]

In a message dated 3/10/2011 11:04:12 A.M. Central Standard Time,  
del at fandrichpiano.com writes:

I remain  willing to be convinced but I'd like the results to be 
measurable--or at least  audible--and not just suppositious.
Or marketing driven.
 
P



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