Assertion: bass clarinet | /r/HasAspect | two speaker keys
Facets:
value: unlike the higher-pitched clarinets
type: OTHER
Source sentences:
text: Unlike the higher-pitched clarinets, the bass clarinet (and the basset horn) have two speaker keys.
text: The bass clarinet has two speaker keys (D5 and E5), whereas the clarinet has only one speaker key and uses the Bb key for overblowing as well.