Alexander Krannhals

Nellie Melba

Nicola Zaccaria

Zdeněk Chalabala

Henri Legay

Serge Koussevitzky

Pierino Gamba

Gran Orquesta Sinfónica

Ferdinand Frantz

Catharine Crozier

Dag Wirén

Hungarian State Opera Orchestra

René Bianco

Carlo Tagliabue

Edgard Varèse

Reinhold Barchet

Zdeněk Fibich

Mormon Tabernacle Choir

Benno Moiseiwitsch

Renée Doria

The Beecham Choral Society

Stanislaw Skrowaczewski

Francesco Valentino

Teresa Tourné

Roger Wagner