Alt-klarinet
- longName: Alto Clarinet
- shortName: A. Cl.
- description: Alto Clarinet
- musicXMLid: wind.reed.clarinet.alto
- clef: G
- transposingClef: not set
- concertClef: not set
- barlineSpan: 1
- aPitchRange: 43-80
- pPitchRange: 43-84
- transposeDiatonic: -5
- transposeChromatic: -9