21st century tonality

[A440A@AOL.COM]

Dave writes: 
>(a modified Valotti as it happened) was, on the third day
>found to not be pleasant in the key of F#. If you understand your
>temperament you can quickly adjust the key signature, if you tune only
>by the box your sitting there with your thumb up your nose. 

Or simply add or subtract 100 cents on the machine and tune it 1/2 step 
off............
This reverses  the traditional order of tonality.  Piece of cake. 
Regards, 
Ed
(and exactly what is a modified Valotti?)