Author: Dan Shusta
Date: 2020-11-11 00:19
Bennett, I like your flue explanation. Where are the harmonics coming from? Well, actually, I believe you answered it yourself. It's the material the pipe is made of. And, yes, I also believe if you grab the pipe's material, you will change the timbre because the "grabbing" restricts or reduces the vibrations which produce the harmonics and not necessarily at a uniform rate.
While reading your response, a thought occurred to me that never entered my mind before. I kept thinking of how the clarinet reed basically swings back and forth simultaneously with the fundamental tone, but, then, I said to myself, where are the harmonics coming from? And, why do they change when any adjustment is made to the reed? Then it occurred to me that the reed in and of itself is also vibrating independently from the clarinet fundamental tone. And, this independent vibration of the reed itself varies according to the cut and the contour of the reed along with any adjustments that may have been made.
So, in my mind, two separate vibrations are occurring at the same time. Hence, this is why altering the reed through adjustments won't change the fundamental, but, it will definitely change the harmonics due to the separate and independent vibration of the reed itself. At least, that's what makes sense to me.
If this has been mentioned before, my apologies.
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The Clarinet BBoard
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