Fandrich Handout Error

[RicB]

Hi folks

Been reviewing Delwins handout entitled "Piano Scalemaking" and noticed 
in the formula he gives for/ J  /(string stiffness) what appears to be 
an error and I'd apreciate a correction/clarification.

The formula reads   J = (pi^2Yd^2kL^2K)/32  and both Y and K are defined 
as being 1.9 * 10^11 N/m^2.

Doesnt sound likely that Both Y and K would be of an identical such 
value without some further simplification... ends up being Y ^2 or K^2.

Can somebody clear this up for me ?  I'd also like to know what the 
small k value is.  It is defined as an unspecified numerical constant in 
the handout.

Cheers
RicB
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