Roberto Silva

Sadler's Wells Orchestra

London Symphony Orchestra

Kurt Herbert Adler

Wolf-Dieter Hauschild

Romano Gandolfi

Rosa Rimoch

ORF Symphonieorchester

Jovita Dermota

Marinus Voorberg

Clifton Ware

Bryden Thomson

Günter Wagner

Anna Reynolds

Licinio Montefusco

Marcus Dods

Ewa Podleś

Kurt Böhme

Eugene Holmes

Het Volendams Opera Koor

Emilio De' Cavalieri

Giuseppe Di Stefano

Franco Calabrese

Benjamin Britten

Nikolaus Hillebrand