She was engaged by the Royal Opera House , Covent Garden , as a utility soprano , and made her debut there on 28 October 1952 , as the First Lady in The Magic Flute , followed in November by a few performances as Clotilde in Vincenzo Bellini 's Norma , with Maria Callas as Norma .
She was hired by the Royal Opera House as a utility soprano , making her debut in 1952 , as the First Lady in Mozart 's The Magic Flute .