[pianotech] key leveling with a curve

John Delacour JD at Pianomaker.co.uk
Sun Oct 17 13:26:08 MDT 2010


At 11:43 -0700 17/10/2010, Roger Gable wrote:

>Et al,
>Try this theory:
>
>Given the string height is curved &...

Given? Given by what law?  The strike height line was never designed 
to be curved, bent or irregular, and on many pianos there is no 
significant variation.  The fact that many Steinways have an 
irregular strike height line is no basis for any theory except that 
Steinway have paid insufficient attention to their foundry patterns 
and their castings, as you can tell simply by looking at them.

JD






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