Bas-klarinet
- longName: Bass Clarinet
- shortName: B. Cl.
- description: Bass Clarinet
- musicXMLid: wind.reed.clarinet.bass
- clef: not set
- transposingClef: G
- concertClef: G8vb
- barlineSpan: 1
- aPitchRange: 37-75
- pPitchRange: 34-79
- transposeDiatonic: -8
- transposeChromatic: -14