Grootbas-kelhorn
- longName: Greatbass Kelhorn
- shortName: Gb. Kh.
- description: Greatbass Kelhorn
- musicXMLid: not set
- clef: F
- transposingClef: not set
- concertClef: not set
- barlineSpan: 1
- aPitchRange: 36-50
- pPitchRange: 36-53
- transposeDiatonic: not set
- transposeChromatic: not set