Alt-chalumeau
- longName: Alto Chalumeau
- shortName: A. Cha.
- description: Alto Chalumeau
- musicXMLid: wind.reed.chalumeau
- clef: G8vb
- transposingClef: not set
- concertClef: not set
- barlineSpan: 1
- aPitchRange: 53-67
- pPitchRange: 53-70
- transposeDiatonic: not set
- transposeChromatic: not set