(Credit: Algirdas Bakas) The Berliner Philharmoniker has announced that soprano Sonya Yoncheva has canceled her participation in the title role in Tchaikovsky’s “Iolanta” for concert performances of the opera on Jan. 12, 14 & 15, 2022 due to flu. As a result, soprano Asmik Grigorian will take over the role, making her Berliner Philharmoniker house debut. Grigorian joins a cast {…}