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
Frank Porretta next fourteen years, performing such roles as Alfred in "Die Fledermaus", Alfredo in "La traviata", Apollo in "L'Orfeo", Belmonte in "The Abduction from the Seraglio", the Duke of Mantua in "Rigoletto", Edgar Linton in "Wuthering Heights", Frederic in "The Pirates of Penzance", Lucentio in Vittorio Giannini's "The Taming of the Shrew", Jolidon in "The Merry Widow", Luigi in "Il tabarro", Nanki-Poo in "The Mikado", Pinkerton in "Madama Butterfly", Ralph Rackstraw in "H.M.S. Pinafore", Rinuccio in "Gianni Schicchi", Sam Kaplan in "Street Scene", the Sleepwalker in "Louise", Steve in "The Cradle Will Rock", and Vladimir in "Prince Igor" among others. He