[pianotech] ETD stretch vs pure (octaves)

PAULREVENKOJONES at aol.com PAULREVENKOJONES at aol.com
Fri Nov 13 21:14:09 MST 2009


David, that's truly funny.
 
P
 
 
In a message dated 11/13/2009 10:10:42 P.M. Central Standard Time,  
davidlovepianos at comcast.net writes:

 
Yes,  a killer octave. 
 
David  Love 
www.davidlovepianos.com
 
 
From:  pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On 
Behalf Of  PAULREVENKOJONES at aol.com
Sent: Friday, November 13, 2009 8:03  PM
To: pianotech at ptg.org
Subject: Re: [pianotech] ETD  stretch vs pure (octaves)

 
Yeah,  the phrase "properly tuned octave" is the killer isn't  it.
 

 
P
 

 
 
In a  message dated 11/13/2009 9:59:10 P.M. Central Standard Time,  
pianotuna at accesscomm.ca writes:

Hi  Paul,

A properly tuned octave is a matter of taste. I have one client  who prefers
2:1 octaves on her entire piano. I accomodate her wishes. Of  course, all
the other partials are contracted from where most folks want  to hear them.

At 10:42 PM 11/13/2009 EST, you wrote:
>    
>
> I shouldn't  but...   There is still vast confusion in the use of  the
>phrases "pure octave" and  stretch. All properly tuned  octaves are 
slightly
>wider at some coincident  partial, so  stretched. You choose the coincident
>partial set of your  liking.     I am not familiar enough with machines  to
>speak to how they treat octaves  in the midrange, but it is  evident and
>calculable that as you go deeper into the  bass and  higher into the 
treble,
>the octaves stretch more. There is no  such  thing as a "pure" octave; 
there
>will always be some  coincident partial set  beating.    P 
Regards,
Don  Rose, B.Mus., A.M.U.S., A.MUS., R.P.T.
Non calor sed umor est qui nobis  incommodat

mailto:pianotuna at yahoo.com     http://us.geocities.com/drpt1948/

3004 Grant Rd. REGINA, SK, S4S  5G7
306-539-0716 




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