[pianotech] Double Octave Stretch

[David Ilvedson]

Mark,

There is nothing to analyse on this tuning, except to say "this is out of tune".  
It sounds like you are concerned your tuning is not stretched enough for concert work?
Are your tuning aurally?   I wouldn't worry about the stretch, but I'd worry about unisons and stability.

David Ilvedson, RPT
Pacifica, CA  94044

----- Original message ----------------------------------------
From: "Mark & Janine Davis" <pianofortetechnology at saol.com>
To: pianotech at ptg.org
Received: 2/10/2010 9:38:22 PM
Subject: Re: [pianotech] Double Octave Stretch


>Thank you to all who have responded.

> 

>Ed, the bottom octaves were beating 1bps and possibly faster and the top
>octaves were close to the beat speed of F3/A4.  I never said that both
>octaves were beating 1bps though I understand what you are asking.  Your
>question does make me think!  All I can say is I checked the tuning fairly
>quickly and what I wrote in my first post was my assessment of the tuning.
>I never analysed the tuning.  As I also wrote in the first post the piano
>had been tuned two weeks prior to me inspecting it and stands in a hall that
>is wide open (doors open all day) and has air con for school assembly and
>performances etc.

> 

>John, thank you for your time and help.  I will try what you have written.
>I do generally tune unisons as you go for grand pianos even the temperament
>at times too.  On uprights I usually use a temperament strip for the middle
>and for the treble and bass I tune unisons as you go.

>Thank you, Take care, Mark