Touchweight Revisited

Richard Brekne Richard.Brekne@grieg.uib.no
Fri, 08 Aug 2003 00:19:32 +0200


Some interesting exchanges in another forum prompts me to bring up this
subject once more. We spend a lot of time thinking about reducing key
leads, how important that is or isnt, and perhaps this is all far less
significant then we have taken for granted.

Jim Ellis's standpoint is that the Hammers V is what by far dominates
the overall action inertia. This has a couple of rather significant
consequences if true... and it seems reasonable to me at this point
anyways that it is true.

Number 1... it rather totally defeats the whole point to contriving an
adjustable touchweight system. Since non of these systems actually alter
the mass of the system to begin with... much less alter the mass of the
dominant part of the action inertia, then the action that plays heavy
(beyond very light play) will remain unaltered thus when the balance
weight adjuster is changed.

Secondly, it rather limits the validity of any scheme for lowering or
replacing key leading at all, as the keys inertia plays only a small
part in the total inertia of the action.

It would seem to put us back in that same old box.... just how much
hammer weight is enough for tone, and not too much for touch. And it
would seem to not allow us much room for fooling the system with changes
is either leverage, keyweight reduction schemes,  or the rest of it.

Whatdya Whatdya ??

Cheers

RicB

--
Richard Brekne
RPT, N.P.T.F.
UiB, Bergen, Norway
mailto:rbrekne@broadpark.no
http://home.broadpark.no/~rbrekne/ricmain.html
http://www.hf.uib.no/grieg/personer/cv_RB.html



This PTG archive page provided courtesy of Moy Piano Service, LLC