Franco Ghione
Kelley O'Connor
Singverein Der Gesellschaft Der Musikfreunde
Laurence Equilbey
Orchestra of the Welsh National Opera
Anna Reynolds
Stephanie Blythe
Julia Hamari
Christa Ludwig
Nicholas Folwell
Heather Harper
Roberta Alexander
Otto Gerdes
Helen Watts
Helene Perraguin
Coro del Teatro dell'Opera di Roma
Gwyneth Jones
Sheila Rex
Charles Richardson
Iris Vermillion