Klarinet Archive - Posting 000554.txt from 2002/03

From: Mark Gustavson <mgustav@-----.com>
Subj: Re: [kl] R-13 and intonation...good grief
Date: Wed, 20 Mar 2002 17:37:34 -0500

You are not making the pitch in tune, you are tuning the pitch to a just
major 3rd. Anything you play against another pitch is a correct interval.
What is important is to play the correct interval required for the context.

"John P. Varineau" wrote:

> Here is an interesting way to show that even when you have tuned your
> clarinet so that it is "dead on" with the tuning meter, you may not be in
> tune.
>
> This is easiest to hear and adjust when you play a high C (concert
> B-flat) on your clarinet.
>
> Using a tuner which can also produce a tone, tune your "concert B-flat"
> so that it is precisely in tune. Now have the tuner produce a tone a
> major 3rd lower than that pitch which you are playing. You will need to
> LOWER your pitch in order to make that major third sound perfectly in
> tune. In other words, Major thirds are narrower than equal tempered
> major thirds. (By listening to the combination tones you'll be able to
> hear when this interval is in tune)
>
> Now have the tuner produce a tone that is a Minor third lower than your
> pitch. You will have to RAISE your pitch in order to make that minor
> third sound in tune. In other words, Minor thirds are wider than equal
> tempered thirds.
>
> In both cases the pitches you have to produce in order to sound in tune
> will be rather dramatically out of tune with your original tuning pitch!
>
> There is succinct discussion of the use of combination tones in tuning in
> John Krell's book "Kincaidiana." It even includes a "Trio for Two
> Flutes" which is a fun little exercise demonstrating the above
> principles.
>
> John Varineau
> Associate Conductor, Grand Rapids Symphony
> Conductor, Grand Rapids Youth Symphony
>
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