Streinway "Accelerated action".

[Avery Todd]

And then there's always trying to level those d*** things! :-)

Avery

At 07:03 PM 05/05/03 -0700, you wrote:
>This may not be sometrhing that can easily be
>measured, but I am quite certain that it is something
>that a pianist can feel, i.e. 3 separate fulcrums per
>keystroke, vs 1.
>      Thump
>
>--- Ron Nossaman <RNossaman@cox.net> wrote:
> >
> > >Personally, I'm not convinced that S&S's
> > accelerated action really does
> > >anything.  The shift in fulcrum would be miniscule,
> > hardly enough to make
> > >any sort of measurable difference in either the
> > action ratio or the key's
> > >moment of inertia.  There would *technically* be
> > shifts in these values, of
> > >course.  Technically, the mechanical advantage over
> > the capstan end would
> > >decrease as the key is depressed.
> >
> > Realistically, the effective fulcrum point is going
> > to shift more rocking a
> > flat key across a well compressed flat punching than
> > across a half round
> > dowel. Maybe the benefit is that the fulcrum point
> > *doesn't* move, and the
> > key leverage *doesn't* change as much through the
> > stroke.
> >
> > Ron N
> >
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