sentence: Most bands have only one bass trombonist.
sentences_before: The 'bass trombone' is different from the tenor trombone because it has one or two triggers, and has a larger bell, which makes it sound better in lower octaves.
sentences_after: Usually, if a song does not have a bass trombone part, the bass trombonist reads off the 3rd or 4th trombone part.
concept_name: band
headings: Trombone Types