Assertion: tenor trombone | /r/HasAspect | valve attachments
Facets:
value: commonly
type: TEMPORAL
Source sentences:
text: Tenor trombones commonly have valve attachments, the most common being the F-attachment, which changes the pitch of the instrument from B♭ to F, increasing the range of the instrument downward and allowing alternate slide positions for notes in 6th or 7th position.
text: Contrabass trombones also can have valve attachments.