S&S D Duplex - a designers point of view

[Isaac OLEG]

Well, I just wanted to transmit you, that accordingly to recent
discussions, the idea here are that .

Duplex scales length are to be parsed so to avoid any particular
ringing in the halo they produce (as considered as a whole undamped
system), if too much RD produced the same pitch, they could produce a
dominant tone, I suspect that is why too some "dissonant" intervals
are used too.

If we where to agree with the G. Weinreich thoughts about how the
modern piano sound, they would better be slightly mistuned to avoid
any loss of energy due to the coupling front/rear. then a gain is
sustain is may be expected.

Accurately tuning aliquot plates seem unrealistic for many reasons.
 I will try one with individual rests soon and experiment a little.

Regards

Isaac OLEG


> -----Message d'origine-----
> De : pianotech-bounces@ptg.org
> [mailto:pianotech-bounces@ptg.org]De la
> part de Bill Ballard
> Envoye : mercredi 27 novembre 2002 06:57
> A : Pianotech
> Objet : Re: S&S D Duplex
>
>
> At 11:24 PM -0500 11/26/02, Duplexdan@aol.com wrote:
> >Bill,
>
> Dan,
>
> >Thank you for your sincere interest in the Duplex Scale
> tuning procedure.
> >Contrary to your position that people are losing interest,
> I have found that
> >technicians seriously interested in piano tone are gaining
> substantial
> >interest and technical knowledge in how to deal with the subject.
>
> Actually Dan, I was referring specifically to the list, judging by
> the activity on this particular thread.
>
> >If you would like a copy of my
> >Duplex Scale Field Manual Guide , which lists the scales
> of the most popular
> >pianos in the world that have Duplex Scales it is
> available for $20.00 The
> >guarantee is, if you return the book, I'll return you your $20.00
>
> You're on. I've got your address. Would you mind if I shared the B
> and C scales with Richard Brekne?
>
> Bill Ballard RPT
> NH Chapter, P.T.G.
>
> "No one builds the *perfect* piano, you can only remove the
> obstacles
> to that perfection during the building."
>      ...........LaRoy Edwards, Yamaha International Corp
> +++++++++++++++++++++
> _______________________________________________
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>