Assertion: tuba | /r/CapableOf | increase in diameter
Facets:
value: gradually
type: MANNER
value: throughout its length
type: OTHER
Source sentences:
text: As with the other conical-bore instruments, the cornet, flugelhorn, horn, and tuba, the euphonium's tubing (excepting the tubing in the valve section, which is necessarily cylindrical) gradually increases in diameter throughout its length, resulting in a softer, gentler tone compared to cylindrical-bore instruments such as the trumpet, trombone, sudrophone, and baritone horn.