Deborah Polaski, Alessandra Marc, Waltraud Meier, Falk Struckmann, Daniel Barenboim & Staatskapelle Berlin

Deborah Polaski is an American opera and concert singer. She has specialized in dramatic soprano roles and also sings mezzo-soprano roles occasionally. From Wikipedia (https://en.wikipedia.org/wiki/Deborah...) under Creative Commons Attribution CC-BY-SA 3.0 (http://creativecommons.org/licenses/b...)