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Sondra Radvanovsky sings the performances on Jan. 11, 14, and 30 matinee, and Julianna Di Giacomo those on Jan. 19, 23 and 26. Both will be performing the role for the first time at the Met.

Sondra Radvanovsky sang Lina at London's Royal Opera Covent Garden in 2007. She has performed many demanding Verdi soprano roles at the Met, such as Leonora in Il Trovatore, which she sang last season in a new production by David McVicar, Elvira in Ernani, Elena in I Vespri Siciliani, Elisabeth in Don Carlo, and the title role in Luisa Miller. Radvanovksy is a graduate of the Met's Lindemann Young Artist Development Program.

American soprano Julianna Di Giacomo made her Met debut as Clotilde in Norma in 2007. This past season she made her debut at La Scala as Lucrezia in Verdi's I Due Foscari. She has appeared with New York City Opera as Fiordiligi in CosÐ fan tutte and as Donna Elvira in Don Giovanni. She has sung Leonora in Il Trovatore at the Caramoor Festival and Lucrezia in I Due Foscari with Opera Orchestra of New York.

Plšcido Domingo conducts all six performances of Stiffelio, and the cast includes Jos_ Cura in the title role, Andrzej Dobber as Stankar, and Phillip Ens as Jorg. The production is by Giancarlo del Monaco, with set and costume designs by Michael Scott.

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