Aural Octave Tuning & Cutting Technology

John M. Formsma jformsma@dixie-net.com
Thu, 27 Sep 2001 08:15:42 -0500


List,

Some of you might benefit from a technique I've come up with and been using
for a while. It is a sort of visualization to help me tune octaves. Sounds
kinda strange to have a visualization to *hear* something, but it works well
for me. I think the reason why it helps is not that I have hearing problems,
but that my main problem is my focus. In other words, our ears work fine,
but what you and I need for tuning is a great mental focus so that our
brains can interpret and dissect what our ears bring in, and then move our
hands to get the sound we want.

What I've been doing when tuning octaves is to think of an isosceles
triangle (with its base on the "ground"). For those not
geometrically-minded, an isosceles triangle is one with two legs having the
same length. The idea is to make the resultant sound of the two notes come
together, up to a point, which corresponds to the very top of the triangle.
Hence, you have an equal contribution from each note forming the octave.
They both "agree" with each other, and both sounding together produce a
"perfect" octave in which all the partials best agree. When tuning treble
octaves, if your top note is too sharp, you can think of your triangle
leaning to the right. When the top note is too flat, you can think of the
triangle leaning to the left. To correct a bad octave, make your triangle
stop leaning, and come to the "straight up" position. I still test my
octaves, but find that I have to do less retuning with this technique.

This has helped me, especially when I'm tired, because I tend to lose focus
then. If I have trouble concentrating, then I just think of the triangle,
and things come into focus again. It works well for treble and bass octaves.
The triangle that I find myself visualizing has bottom angles of about 75°
each.

I have also found it helpful in tuning unisons. I think of a very tall
isosceles triangle with 85+° angles, with a point that reaches up into
infinity. That helps me get the purest unison.

Hope this new angle helps your tuning, and you don't think I've been too
pointed in this tip. Sorry ;-)

John M. Formsma
Blue Mountain, MS
PTG Associate, Memphis Chapter

mailto:jformsma@dixie-net.com

P.S. Now for the "cutting technology" part. I bought a Wahl Custom shaver a
couple of weeks ago. I'd been using a Braun shaver for years, and thought
that nothing else could beat it. I've owned two since 1989, and was well
pleased with both. When my last Braun bit the dust (due to my taking it
apart to try to replace the battery), I purchased the Wahl Dynaflex because
of hearing about it from Paul Harvey. It had a money-back guarantee, so I
had nothing to lose. Folks, it really works well. Shaves as fast as or
faster than my Braun, and with the Super Close foil, it gets my face so darn
smooth, I could hardly believe it. Anyway, I don't usually get excited about
many products, but this one works great!



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