Oslo Filharmoniske Kor

Валентина Ивантеева

Marius Rintzler

Ditta Pásztory-Bartók

Nikolaus Hillebrand

Bidú Sayão

Guildford Choral Society

Arturo Basile

Phyllis Bryn-Julson

Daniel Varsano

Choeur De La Madeleine

Domenico Trimarchi

Zagreb Festival Orchestra

Todor Grigorov-Teres

Ernesto Dominici

Helmut Jenssen

Levon Abrahamian

The Boys Choir Of Harlem

Alois Klíma

Knut Guettler

Evžen Rattay

New York Trumpet Ensemble

Atar Arad

Mirko Bulovan

Georg Muffat