[pianotech] Early Duplex Scale

[Delwin D Fandrich]

All pianos have “duplex” scaling; that is there is two parts to the scale, the fundamental speaking length and some duplex portion I’ve been calling either the frontscale or the backscale. In theory, all piano scales should probably be called triplex scales since there are really three working parts to each scale. Usually, though we seem to think of them in terms of just two segments at a time: the speaking length and the frontscale or the speaking length and the backscale. Some scales have one or more of the duplex string segment(s) “tuned” to some (theoretically) specific partial of the fundamental speaking length. In these cases the duplex string segment is an “aliquot part” or a “fractional part” of the whole. This can be either the frontscale or the backscale (or both).

 

ddf

 

Delwin D Fandrich

Piano Design & Fabrication

6939 Foothill Court SW, Olympia, Washington 98512 USA

Phone  360.515.0119 — Cell  360.388.6525

 <mailto:del at fandrichpiano.com> del at fandrichpiano.com —  <mailto:ddfandrich at gmail.com> ddfandrich at gmail.com

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Alan Eder
Sent: Thursday, March 08, 2012 10:53 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] Early Duplex Scale

 

So the name is NOT "aliquot"? 

 

Alan Eder



-----Original Message-----
From: David Boyce <David at piano.plus.com>
To: pianotech <pianotech at ptg.org>
Sent: Thu, Mar 8, 2012 10:36 am
Subject: Re: [pianotech] Early Duplex Scale

Oh that's interesting Jurgen, thanks. Let's settle for them being Rosewood then!  Still nobody has a name for this piano part! Is there a name in German? How would it translate in English if so?  Accordinmg to Allen Wright, Steinway just called them "duplexes".  Other makes must call them something, when they are ordering them in the factory!




I have a 1911 Rönisch

                grand that has a rosewood hardwood rear bearing strip,

                but it is continuous.





 

              

Jurgen Goering

 


Best regards,

David.
www.davidboyce.co.uk

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