Duo (unspecified)
type: WorkPerformance
viola: http://data.carnegiehall.org/names/37338
violin: http://data.carnegiehall.org/names/27736
performer: http://data.carnegiehall.org/names/27736
performer: http://data.carnegiehall.org/names/37338
work performed: http://data.carnegiehall.org/works/65587