25 or 6 to 4
type: WorkPerformance
concert band: http://data.carnegiehall.org/names/73544
conductor: http://data.carnegiehall.org/names/73545
performer: http://data.carnegiehall.org/names/73544
performer: http://data.carnegiehall.org/names/73545
work performed: http://data.carnegiehall.org/works/70040