Janet Perry ,
Giuseppe Verdi ,
Raina Kabaivanska ,
Christa Ludwig ,
Trudeliese Schmidt ,
Francisco Araiza ,
Piero de Palma ,
Heinz Zednik ,
Giuseppe Taddei ,
Rolando Panerai ,
Federico Davia ,
Wiener Philharmoniker ,
Herbert von Karajan ,
Wiener Staatsopernchor Raymond Leppard ,
London Philharmonic Orchestra ,
Glyndebourne Festival Opera ,
Marjorie Biggar ,
Enid Hartle ,
Teresa Cahill ,
Ugo Trama ,
Peter Gottlieb ,
Ileana Cotrubas ,
James Bowman ,
Janet Baker ,
Hugues Cuenod ,
Janet Hughes ,
Federico Davia ,
Owen Brannigan ,
Teresa Kubiak ,
Isla Brodie Raymond Leppard ,
London Philharmonic Orchestra ,
Glyndebourne Festival Opera ,
John Wakefield ,
Peter Christoph Runge ,
ISABEL GARCISANZ ,
Hanneke Van Bork ,
Jean Allister ,
Hugues Cuenod ,
Anne Howells ,
Jane Berbie ,
Federico Davia ,
Richard van Allan
