Ron and David (and whoever doesn't have any better idea of how to
spend a Saturday night),
The argument laid out by Ludwig Riemann in Pfeiffer is tantalizing in
all that it has to offer, the arrival of more consistent dip between
naturals and sharp and the reduced and easier height of the sharps,
both of which the pianists will thank us for. All we have to do is
set all the balance pins in one line, that's all it costs us.
Probably bringing the sharps' balance points away from the capstan
would be a better arrangement than moving the naturals in towards the
sharps' balance line. It would seem to avoid squashing the leverage
into too small a space.
But even doing this relocation of the balance line (by moving the
sharps), the consequences to the leverage of the key such as David
has observed is difficult to ignore. David's metrology may seem to
exist in a universe parallel to that of linear measurement of key
lever ratios: in fact, it is simply measuring the leverage by weight.
I like my keyboards at .51, and I have seen key lever ratios
of .59. But I am not looking forward to meeting at keyboard with .79
ratio, especially the group of .79's was in fact the sharps, and I
was supposed to set aftertouch and not worry about dip, and
furthermore, to expect to rebalance a set of keys whose leading had
to answer to a 5.5 total leverage on the naturals and (way up there)
7.5 on the sharps.
Certainly I'd love to play on one of Chwatal's keyboards for the
freedom allowed once the height of the sharps was reduced. And I
might even be able to play beyond the effects of the action ratio on
the front weights and key dip. But then pianists can learn to love
anything, as long as it sounds good. Who remembers the grands up in
the Pacific Northwest with no front leads and the hammers ground down
to bring the balance weight within playable range. There were many
pianists who loved these pianos. I believe I remember Don Mannino
reporting favorably on one on this list, a few years back.
But getting back to the "tomahtos" and "tomaytos" in Ron and David's
remarks, Ron's challenge that David should refute each of Riemann's
reported advantages is not required. I agree that what Riemann says
in is fact there for the pianist to enjoy. The issue is a little
larger, namely whether the side-effects of such a redesiging of the
keyboard is a reasonable price to pay for it.
You say key height and I say inertia....let's call the whole thing off.
Mr. Bill Ballard RPT
NH Chapter, P.T.G.
"Can you check out this middle C?. It "whangs' - (or twangs?)
Thanks so much, Ginger"
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