Heckelphone klarinet
- longName: Heckelphone-clarinet
- shortName: Hph.-cl.
- description: Heckelphone
- musicXMLid: wind.reed.heckelphone-clarinet
- clef: G8vb
- transposingClef: not set
- concertClef: not set
- barlineSpan: 1
- aPitchRange: 50-84
- pPitchRange: 50-84
- transposeDiatonic: not set
- transposeChromatic: not set