Bocal

In Britain "crook" is a more common term for "bocal".

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The metal part of a bassoon that extends to the bassoon player's mouth. The bassoon's reed is attached to the end of the bocal. Most newer bocals also have a hole for the bassoon's "whisper key" to help with different octaves.

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Bocals often come in varying lengths, with the markings "1", "2" and "3". Different bocals can be used if the instrument is playing particularly sharp or flat.

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The cor anglais (or English horn) also has a bocal (or crook), that is considerably smaller than the bassoon's. It is also shaped differently. Cor anglais bocals also come in varying lengths.

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Cor anglais: The cor anglais, or English horn, is a double reed woodwind musical instrument in the oboe family. It is pitched in F, a fifth lower than the oboe (a C instrument), and is consequently approximately one-third longer. Its pear-shaped bell gives it a somewhat more nasal, covered timbre than that of t...

English horn: REDIRECT Cor anglais (English horn)...