Davida Karanas is withdrawing from her scheduled performances of Cassandre owing to her pregnancy. Two of those performances, on June 12 and 20, will be sung by Michaela Martens, American mezzo-soprano.
Antonacci is taking the third performance, on July 1, in addition to her already-scheduled performances on June 7, 16, and 25.
Here's the press release:
SAN FRANCISCO (May 5, 2015)—American mezzo-soprano Michaela Martens will make her San Francisco Opera debut as the prophetess Cassandra in the Company’s upcoming production of Hector Berlioz’s grand-scale opera Les Troyens (The Trojans) on Friday, June 12 and Saturday, June 20. San Francisco Opera today announced that Martens replaces mezzo-soprano Daveda Karanas, who has withdrawn from the physically demanding role due to pregnancy.
Italian soprano Anna Caterina Antonacci, who was previously announced to sing three performances of Cassandra on June 7, 16 and 25, has now agreed to add a fourth on Wednesday, July 1. Antonacci, one of the most sought-after and acclaimed European singing artists today, also sings the principal role of Cesira in the world premiere of Marco Tutino’s lush and highly dramatic opera Two Women (La Ciociara) for five performances on June 13, 19, 23, 28 and 30.
Recent and upcoming career highlights for Michaela Martens include Gertrud (Hänsel und Gretel), Marilyn Klinghoffer (Adams’s The Death of Klinghoffer), Judith (Bluebeard’s Castle), Kundry (Parsifal), and the Second Norn (Götterdämmerung) with the Metropolitan Opera; Gertrud with Munich’s Bavarian State Opera; Herodias (Salome) with Santa Fe Opera; Ortrud (Lohengrin) with the Vienna State Opera and in Graz; Kostelnička Buryja (Jenůfa) in Zurich; Judith, Marilyn Klinghoffer and Kostelnička Buryja with English National Opera; and Amme (Die Frau ohne Schatten) with Lyric Opera of Chicago and in Graz. Additional credits include performances with the Cleveland Orchestra, Indianapolis Symphony, Chicago’s Grant Park Music Festival, and Spoleto Festival U.S.A. She is a past winner of the Metropolitan Opera National Council Auditions and holds a degree from the Juilliard School.