A couple of technical questions:

Does the tuning effect of a particular arrangement of pipes on the 
chest, such as M3rds, apply only to mechanical action and slider 
chests, or does it also carry over to electro-pneumo, etc.? Or does 
it apply to slider chests, no matter the valve action?

On mechanical actions, do non-chromatic chests require any more 
work/design effort with regards to roller boards and such?

I have often wondered why M3rd chests weren't more widely used, 
simply because of the better tuning stability.

Lee Ridgway
Boston

At 10:25 PM -0400 10/26/06, Sebastian M. Gluck wrote:
>      My last instrument, built for the Rockefeller family in a small church
>that is graced with stained glass windows by Matisse and Chagall (also
>commissioned by the family), is my first instrument using "major 
>third formation" for
>the planting of the pipes.

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