Duplex scale tuning

[Richard Moody]

If you lost your silly putty to the toddler from last months tuning,
duct tape on  the aliquoit bars, ( upper duplex bars) will hush the
sympathetic interference. Start on the bar itself and press down the
string until the noise is quited.  You do not need to damp the whole
section of the string.  That's why felt intewoven can be detremental
to the tone.  Works great for Y C7 and others. 

Richard Moody 

----------
> From: Newton Hunt <nhunt@jagat.com>
> To: pianotech@ptg.org
> Subject: Re: Duplex scale tuning
> Date: Friday, August 15, 1997 2:09 PM
> 
> 
> My concert grand at our local concert hall has an Db7, E7, F7 that
are
> impossible to tune because the duplex scale unisons for those notes
are very
> close but not exact enough.  They cause beats that I thought were
coming
> from other sources. .
> 
> It wasn't until later that I found that the aliquats where the
cause.  I now
> tune that piano with the duplex muted with silly puddy.



> Intentionally tuning duplexes to match equivelant unisons could
drive tuners
> over the edge into lipflicking.
> 
> I would like to see them tuned to match half way between semitones
to
> prevent matches.
> 
>      Newton
>      nhunt@jagat.com
>      New Brunswick, NJ
>