Ana Maria Iriarte,
Dagmar Hermann,
Wolfram Mertz,
Wiener Singakademie,
Frederick Guthrie,
Mona Paulee,
Paul Hindemith,
Hans Strohbauer,
Gertrud Schretter,
Claudio Monteverdi,
Patricia Benton,
Gino Sinimberghi,
Waldemar Kmentt,
Wiener Symphoniker,
Norman Foster,
Uta Graf
Apr 1, 2011