P12's discussion

[Richard Brekne]

Problem here Joe...

C4 - E5 is not a 12th.  C4 to G5 is a 12th.

C4 to E5 is a 10th... so tuning it pure would definantly cause you 
problems... .grin.

I know this was just a slip up.... hehe.... go back and try again ??  or 
perhaps you just related your story a bit off ?

Cheers Joe

RicB


Joseph Garrett wrote:

>I've been following all of the discussion on the use of Perfect 12ths. I'm a
>bit confused and hope some of you high-end tuner types can enlighten me. The
>way I perceive it, is that we set the thirds, in the temperament to certain
>"beat rates". This gives us a "Tempered Octave" that is the foundation for
>the rest of the piano. The example that I tried, for a perfect 12th, was E5.
>The test note, I used, was C4. The C4 and E4 beat at a certain rate. If I
>tune E5 to yield no beats when testing it against the C4, then the octave of
>E4 and E5 will be off, (ie E5 will be flat of where I think it should be.)
>Am I going about this wrong? My impression of P12ths is that the octaves
>will be narrowed, thus making the "stretch" flat and beating on the narrow
>side. Please elucidate.
>Best Regards,
>Joe Garrett, RPT, (Oregon)
>Captain, Tool Police
>Squares Are I
>
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