Voicing for sustain: was Downbearing and Tone

[Mike Spalding]

Ric,

Capo shaped to a 90 degree "V" with hand-held dremel tool grinder, then
smoothed and radiused (1/2 mm radius, about) with medium and fine emery
cloth.

Duplex tuning is pretty much dictated by the available space for the
aliquots.  There are four groups, starting from the top: Unison, Fifth,
Octave, and Twelfth.

Mike


----- Original Message -----
From: "Richard Brekne" <Richard.Brekne@grieg.uib.no>
To: "Pianotech" <pianotech@ptg.org>
Sent: Thursday, March 27, 2003 6:52 AM
Subject: Re: Voicing for sustain: was Downbearing and Tone


> Hi Mike
>
> I see I was quite a bit behind on this one.
>
> Just out of curiousity,,, what was the basic profile you shaped the capo
too ?
> And I would also be curioius as to the duplex tuning configuration you
choosed.
>
> If you have already related this, just say so and I will search the
archives.
>
> Cheers and thanks
>
> RicB
>
> Mike Spalding wrote:
>
> > Ric,
> >
> > Yes, it's been a while since this one started.  Situation is: just
finishing
> > a rebuild, which included new bridge pins set in epoxy, and re-ground
capo
> > bar, new Abel Encores.  Downbearing possibly in the heavy side, about 1
> > degree.  Being cautious, maybe too much so, about avoiding excessive
> > needling.
> >
> > Also, this being a M&H A with individually tunable aliquots, I have made
an
> > attempt at tuning the rear duplex.  Well, not exactly "Individually
> > tunable", as the aliquot can be positioned correctly for 2 strings of a
> > tri-chord, but the 3rd string must be accepted where it is.  Tuning
seems
> > very sensitive to little inaccuracies in bridge termination, very hard
to
> > get rid the last couple of beats.  I'm not sure what difference, if any,
> > that tuning the duplex has made.  Perhaps the tuning must be very
precise in
> > order to triple the sustain, or whatever it is supposed to do.
> >
> > Mike
> >
>
> --
> Richard Brekne
> RPT, N.P.T.F.
> UiB, Bergen, Norway
> mailto:rbrekne@broadpark.no
> http://home.broadpark.no/~rbrekne/ricmain.html
>
>
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