 Subsequently she was offered a contract as a regular member of the Covent Garden Opera Company.There, she made her Royal Opera House debut as the First Lady in "The Magic Flute" in 1956.She created the role of Hecuba in Michael Tippett's "King Priam" which premiered in Coventry in May 1962; and sang the leading roles in the Western premieres of "Katerina Ismailova" (2 December 1963) at the Royal Opera House, and "The Makropulos Case" at Sadler's Wells (12 February 1964).