“Congratulations! Friends have told me how great you were. I am very happy. My sincerest thanks. Your Wolfgang Rihm”

” …the singers have to face enormous vocal requirements concerning compass and brilliance, and the highest musical complexity. Nadja Michael’s voice in particular (as the Emperor of the Aztecs) exhibits all those challenging qualities. On top of that, the singer’s charisma and body language are captivating… “
elperiodico.com, 10.13

” …Michael, who is known at the Teatro Real for her excellent portrayals of Poppea and Marie has, in the past, created outstanding parts (like Salome), has an exceptionally beautiful and powerful voice. All of this in the body of a dancer. With her voice, which she is able to modulate from gripping to touchingly tender, she lends the necessary expression to all her heroines – an expression which is reflected entirely in a smooth performance. Her Montezuma makes the audience doubt whether Cortez really is the conqueror, or whether she/he can ever be one… “
concertonet.com, 10.13

” …in the end it is understood that the grand impression of this production (stage design by Alexander Polzin/dramatic advisor) thrives on Nadja Michael’s overwhelming performance, which lures the audience into an almost dubious union with her performance. She is more than a mere singer or actress or dancer. The protagonist of Montezuma is conquering Madrid once more as a brilliant stage character … With her in the main role, this production can go a long way… “
 elmundo.es, 10.13