Danielle de Niese, one of the Metropolitan Opera’s favored sopranos, is stepping in for another, Natalie Dessay, as Cleopatra in Tuesday night’s performance of “Giulio Cesare†by Handel, the Met said. Ms. Dessay is ill, the company said, noting that Ms. De Niese has sung the role in the same production at the Glyndebourne Festival in 2005 and at the Lyric Opera of Chicago in 2007, as well as in a different production at the Met in the 2006-2007 season.
