Tuning the Duplex (was ...Capo)

[Baldwin Yamaha Piano Centre]

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Hi Alan,
                It's not some thing you can generally see, and you are not 
pulling or pushing the string that hard.  The massage is done just 2" in 
front of the capo, to the capo bar.
I also usually give the bridge pins a tap with a set punch, when you have a 
piano as described, this also cleans up a lot of false beats, and increases 
sustain, and cleans up the tone.
I wrote an article, Titled,  Prelude to Voicing, last year in the 
Journal.  If you apply all those techniques, you will find many tone 
problems disappear, and the piano may need less voicing.
At times, I think we are guilty of going for the needles, when there is 
other solutions.
Needling can at times hide a multitude of sins.  The real skill comes when 
you know when to cheat.
Ops! Did I say that.  <G>
Roger

At 05:33 PM 9/3/02 -0500, you wrote:
>Thank you and I trust and will try what you say, though I wasn't the 
>person with the duplex complaint.
>
>I am mystified, a little, though. It seems like the strings, up against 
>the capo, are as high as they could get.
>
>Would this not also tend to make the string rise off the bridge a little?
>
>Alan Barnard
>Salem, MO
>
>----- Original Message -----
>From: <mailto:pcpoulso@pacbell.net>Patrick C Poulson
>To: <mailto:pianotech@ptg.org>pianotech@ptg.org
>Sent: Tuesday, September 03, 2002 1:43 PM
>Subject: Re: Tuning the Duplex (was ...Capo)
>
>Alan: Roger is referring to the practice of using a string hook to lift 
>and level all the strings, so that they make firm contact with the capo 
>bar and are level.  Using the string hook of your choice, put the hook 
>under the string right in front of the damper and pull towards the capo 
>bar, lifting slightly as you do so.  Do all three strings and check that 
>they are level.  The strings will typically drop in pitch and improve in 
>tone when retuned.  It will eliminate some if not all the duplex noise.
>Patrick Poulson, RPT

Roger

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