Günther Wilhelms

Werner Hollweg

Felix Mendelssohn-Bartholdy

Charles Gounod

Theo Adam

Pierre Boulez

Ralph Vaughan Williams

Rogers Covey-Crump

Hans Stadlmair

Martina Arroyo

Ludwig van Beethoven

Maurice de Abravanel

Harry Christophers

Roberto Abbondanza

Radio-Sinfonieorchester Stuttgart

Karl Böhm

Siegfried Schwab

Simon Preston

Anton Bruckner

Roberto Saccà

Gilles Cachemaille

Hermann Scherchen

The Royal Choral Society

New York Philharmonic

Mormon Tabernacle Choir