> For correctness, we should mention the split point in piano notes
> [of the 88-note keyboard] only.  This applies the same to any number
> of notes in the stack.  The split is between notes 43 and 44.  This is
> equal to a total of 43 notes in the left half and 45 in the right half.
> The notes in question where the split is, is apparently D# and E.
>
> Perhaps you can verify your findings once more?
>
> Kind regards,
> Bernt Damm

Craig Brougher was good enough to point out to me, when I was talking
about the "split point",  that I should have clarified that I was
talking about the number of pneumatics on the stack which collapse
on the treble and bass side when vacuum is introduced into each side
separately.  I now realize that some may have thought that I was
talking about the "split point" on the keyboard.

Thus, for the sake of clarification, when I was talking about the
"split point" on the Steinway Duo Art 80 note stack, I meant that
for testing purposes, with all nipples on the bleed rail opened, when
vacuum was introduced to the stack on the treble side, 41 pneumatics
would close, and when I introduced vacuum on the bass side, 39 would
close.  Likewise for an 88-note stack, if I introduced vacuum on the
treble side, 45 pneumatics would close, and if I introduced vacuum
on the bass side, 43 pneumatics would close.

Applying this to the 88-note keyboard therefore, the "split point"
on both stacks (80 and 88 note) would be between notes 43 and 44.
Sorry for the confusion.

Barry Dennis