Yvonne Kenny when she replaced, with only four days' notice, the soprano scheduled to sing in an Opera Rara concert performance of Donizetti's "Rosmonda d'Inghilterra" at the Queen Elizabeth Hall. It was a triumph and the virtually unknown Kenny became an overnight star. She made her debut at the Royal Opera House the following year, in the premiere of Hans Werner Henze's "We Come to the River", later singing in Handel operas such as: "Semele", "Alcina", "Giulio Cesare", and such Mozart operas as: "Idomeneo", "Mitridate, re di Ponto", "La clemenza di Tito", "The Abduction from the Seraglio", "The Magic Flute". She also
Christine Weidinger among others. In 1988 she performed the role of Eupaforice in Carl Heinrich Graun's "Montezuma" at the Spoleto Festival USA. After a 16-year absence, she returned to the Metropolitan Opera in 1992 to sing the title role in Rossini's "Semiramide". Some of the many other roles Weidinger has sung on stage are Arminda in "La finta giardiniera", the Countess in "Le comte Ory", Gilda in "Rigoletto", Konstanze in "The Abduction from the Seraglio", Leonora in "Il trovatore", the title role in Rossini's "Armida", Armida in Handel's "Rinaldo" (with Marilyn Horne) and Amenaide in "Tancredi". She also performed the demanding Donizetti