Cornet en Si♭
- longName: B♭ Cornet
- shortName: B♭ Cnt.
- description: B♭ Cornet
- musicXMLid: brass.cornet
- clef: G
- transposingClef: not set
- concertClef: not set
- barlineSpan: 1
- aPitchRange: 52-79
- pPitchRange: 52-82
- transposeDiatonic: -1
- transposeChromatic: -2