Tuning

Jim Coleman, Sr. pianotoo@IMAP2.ASU.EDU
Mon, 29 Sep 1997 20:23:42 -0700 (MST)


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Hi Warren:

In the articles on Altering Stretch numbers which appeared in the April
and May Journals, I explained that if one added to the value of the A4
stretch number in order to stretch octaves a little more, one should add
that same amount at note C5 to the pitch reset of the SAT. As explained
in that article in a complete way, this keeps the tuning progressing
smoothly on up the scale. I showed several tables which revealed how
changing the A4 stretch number in particular needs to be compensated for
in resetting the pitch when you get up to note C5. Another additional
reset could be made at note C6, but it is rather inconsequential, so I
usually ignore it.

I have included, as an attachment to this post, a file which explains
the pertinent part of that article.

Jim Coleman, Sr.

On Mon, 29 Sep 1997, Warren Fisher wrote:

> Jim Coleman, Sr. wrote:
> > 
> > Hi again David:
> > 
> > If you are trying to tune a Pure 5ths Temperament,
> 
> Jim, I'm not sure I understand the offset in the fifth octave you
> mentioned in your original article.  Could you give me an example?
> 
> Thanks,
> 
> Warren
> -- 
> Home of the Humor List
> Warren D. Fisher
> fish@communique.net
> Registered Piano Technician
> Piano Technicians Guild
> New Orleans Chapter 701
> 
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