Altviolen
- longName: Violas
- shortName: Vlas.
- description: Violas
- musicXMLid: strings.group
- clef: C3
- transposingClef: not set
- concertClef: not set
- barlineSpan: 1
- aPitchRange: 48-79
- pPitchRange: 48-93
- transposeDiatonic: not set
- transposeChromatic: not set