Bass-baritone. After making his debut in the role of Lucifer in Stockhausen’s Donnerstag aus Licht at the Royal Opera House at the age of 25, he has appeared in leading concert halls and opera houses on 4 continents. He has worked closely with composers such as Sylvano Bussotti, Elliott Carter, George Crumb. Hans Werner Henze, Mauricio Kagel, György Kurtág, Steve Lacy, Olivier Messiaen, Giacinto Scelsi, Karlheinz Stockhausen and Iannis Xenakis and has sung a vast repertory including Medieval and Renaissance music with Joel Cohen, French baroque music with William Christie, Handel with Nicholas McGegan and Romantic music with Zubin Mehta. He has taught masterclasses at the Paris Conservatoire, Conservatorio Giuseppe Verdi in Milano and Salzburg Mozarteum, and has been visiting professor of singing and opera at the State University of New York at Buffalo, Notre Dame, Calarts, the University of Oregon, École Normale de Musique and the Universität der Künste. He has published an article on the vocal vibrato in The Journal of Singing, and his book The Techniques of Singing is due for publication by Bärenreiter Verlag this year. He has recorded 55 CDs for labels such as Erato, Naxos and Harmonia Mundi and made several films and DVDs.