Klarinet Archive - Posting 000560.txt from 2001/01

From: "Dee D. Hays" <deehays@-----.net>
Subj: Re: [kl] Register Key, Twelfth vs. Octave
Date: Tue, 16 Jan 2001 19:11:45 -0500

----- Original Message -----
From: "Forrest Davie" <mcpusc@-----.com>
Subject: Re: [kl] Register Key, Twelfth vs. Octave

>
>
> I belive that the conical (rather that cyndrilical)
> bore of the clarinet causes the octave shift to be a
> twelveth, and not an eighth.
>

You have it confused. The clarinet is classified as a cylindrical bore
closed at one end. This *combination* is what makes it jump the twelfth.

Here's a rundown of other instruments.

Flute, piccolos, fifes, recorders, and any other horizontal or vertical
flute
Conical or cylindrical bore open at both ends - jumps the octave

Sax, oboe, English horn
Conical bore - jumps the octave

Clarinet
Cylindrical bore closed at one end - jumps the octave.

Dee Hays

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