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Trombone Mouthpiece - Ymusic.kz

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Backbore<br />

The “backbore” is the inner<br />

section of the mouthpiece bore which<br />

follows the throat. The backbore has<br />

a complex flare which can significantly<br />

affect high-register pitch. The<br />

diameter of the backbore also influences<br />

timbre and resistance. Like<br />

most other diameter-related parameters,<br />

a narrow backbore results in<br />

increased resistance, brighter tone,<br />

and easier playing in the high register.<br />

A larger backbore decreases<br />

resistance for darker tone and easier<br />

playing in the lower range.<br />

Shank<br />

This parameter is of prime importance<br />

in determining how well a<br />

mouthpiece matches your instrument.<br />

The taper of the mouthpiece shank<br />

must perfectly match the instrument’s<br />

receiver — there should be<br />

absolutely no “play”. The outer<br />

diameter of the shank determines<br />

how deeply the mouthpiece seats in<br />

the receiver, thus affecting overall<br />

pitch, the accuracy of individual<br />

notes, and even playing feel.<br />

Narrow<br />

Wide<br />

Backbore<br />

Model number system<br />

14 A 4 a<br />

Cup diameter<br />

Rim contour<br />

Cup volume+shape<br />

Backbore<br />

Cup diameter = 5~68 (narrow~broad)<br />

Cup volume+shape = A~E (shallow~deep) C=standard<br />

Rim contour = 1~5 (flat~round) 3=standard<br />

Backbore = a~e (narrow~broad) c =standard<br />

6

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