Witness
type: WorkPerformance
mezzo soprano: http://data.carnegiehall.org/names/14984
piano: http://data.carnegiehall.org/names/25484
performer: http://data.carnegiehall.org/names/25484
performer: http://data.carnegiehall.org/names/14984
work performed: http://data.carnegiehall.org/works/10326