Cornet Alto
- longName: Alto Cornett
- shortName: A. Co.
- description: Alto Cornett
- musicXMLid: brass.cornett
- clef: G
- transposingClef: not set
- concertClef: not set
- barlineSpan: 1
- aPitchRange: 57-80
- pPitchRange: 57-83
- transposeDiatonic: not set
- transposeChromatic: not set