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
Il re Il re Il re ("The king") is a novella or opera in one act and three scenes by composer Umberto Giordano to an Italian libretto by Giovacchino Forzano. The opera premiered at La Scala in Milan on 12 January 1929. Unusual for a 20th-century opera, "Il re" was written specifically as a vehicle for Toti Dal Monte, a coloratura soprano of the old school. Dal Monte performed the work a number of times during her career but after her retirement, the opera quickly fell into obscurity. In December 1949, Arturo Toscanini, who had conducted the world premiere of the opera,