Feedback or Controversy on Bach/Lehman's temperament ?

[Ron Koval]

I've set this temperament on a good many pianos... It was even chosen for my 
son's senior piano recital last year.  He was used to it at home, so that 
wasn't a stretch for him.  He played a varied program from Bach to 
Rachmaninov, to Joplin.  Like many of the milder temperaments, there 
shouldn't be any drastic reactions to hearing music.... not test intervals, 
but music played on such a temperament.

Ed and Jason did a good job before, I'd only like to add that while the 
graphs of cents from pure are seductive in some of the symmetry displayed, 
(or lack) we hear beats, and interactions between beats, not simply a 
measurement of how far from pure intervals are.  There is a great influence 
on WHERE in the keyboard (up or down) varying degrees of tempering occurs.

As to the authenticity?  Well, with the DaVinci Code set to open in a month, 
it may be fun to guess, but it's going to be a tough sell! There have been a 
few other attempts at understanding the scrollwork - all ending up with 
different results.

I like the response I get back from people playing this temperament - that's 
what matters most to me.  Since I've had the opportunity to try so many 
temperaments, both modern and old, I don't really care where it comes from - 
I care how it plays.

Ron Koval
Chicagoland