Enric Serra

Patricia Schuman

Michele Pertusi

Nello Santi

Yannick Nézet-Séguin

Philharmonisches Staatsorchester Hamburg

Carl St. Clair

Roger Soyer

The Metropolitan Opera House Orchestra

Waltraud Meier

Dorothee Mields

Dietrich Fischer-Dieskau

Richard Tucker

Wiener Philharmoniker

Étienne-Nicolas Méhul

Nicolai Gedda

David Abell

Helmut Koch

Zlata Bulycheva

Alex Ashworth

Ruth Ann Swenson

Sandi Patty

Inva Mula

The Alexandrov Red Army Ensemble

Éva Marton