Bas-trombone
- longName: Bass Trombone
- shortName: B. Tbn.
- description: Bass Trombone
- musicXMLid: brass.trombone.bass
- clef: F
- transposingClef: not set
- concertClef: not set
- barlineSpan: 1
- aPitchRange: 32-68
- pPitchRange: 27-72
- transposeDiatonic: not set
- transposeChromatic: not set