The ABAO Bilbao Opera has announced a major cast change for its upcoming production of “Eine Florentinische Tragödie.” The company revealed that German bass-baritone Carsten Wittmoser will be making his company debut, taking over the role of Simone for Eglis Silins who had to withdraw due to health reasons. Wittmoser has sung at the most prestigious opera houses in Europe {…}