Il trovatore: Duet (unspecified)
type: WorkPerformance
bass: http://data.carnegiehall.org/names/68931
soprano: http://data.carnegiehall.org/names/60986
performer: http://data.carnegiehall.org/names/60986
performer: http://data.carnegiehall.org/names/68931
work performed: http://data.carnegiehall.org/works/9892