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From: Bobbie Giordano
Date: Tue, 19 Mar 1996 17:55:26 -0500 (EST)
Subject: Re: question on bending the same note on different key harps.

On Tue, 19 Mar 1996, Mike Curtis wrote:

> Bending is caused by overcoupling a second resonant device tuned to a pitch
> close to that of the first reed.
>
> In the case of "diatonic" bending without windsavers, this is the other
> reed in the hole.
>
> This does not hold true for valved harmonicas. The second resonant device
> is not a reed, but the harmonicists own resonance.

> MC> I theorize that my mouth resonance, being overcoupled into the reed,
> MC> pulls the frequency, much as overcoupling tuned circuits in
> MC> electronics will pull frequency.
>
> RJ: This explanation is correct.

From my point of view, it should be thoughtfully considered that any and
all of the above are strictly theoretical, without any proof whatsoever
that these statements confirm the particular scientific, acoustical, or
physical mechanisms or phenomena at work in the process of bending notes.
In our world, there is acoustical, electrical, mechanical, chemical, even
nuclear resonance, all of which have relation by terminology, but are far
from representing identical properties and operations. Analogies can be
made, but evidence is needed. So, as for electrical resonance exhibiting
acoustical characteristics...Affective...maybe. Causal...not so sure.
I remain unconvinced.

Stubborn as ever,
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