Assertion: clarinet's key | /r/HasProperty | added
Facets:
value: originally
type: MANNER
Source sentences:
text: Further keys were added to improve certain notes.
text: The alto clarinet, however, usually has an extra key allowing it to play a low (written) E♭, and a half-hole key controlled by the left-hand index finger with a vent that may be uncovered to assist in playing the altissimo register.
text: Its intonation was improved by a rearrangement of the holes, more keys were added, and the instrument's range was extended.
text: A low E flat key was also added because it is a note that did not exist on previous clarinets and it is required by some composers.
text: This key was originally added to allow easy transposition of parts for the relatively rare bass clarinet pitched in A, but it now finds significant use in concert band and other literature.
text: Most alto and bass clarinets have an extra key to allow a (written) E♭ 3 .