Elena Theodorides, Studio Pianist, Sibyl Seligman, Studio Orchestra, Giuseppe Bellantoni, Marie Therese de Segur, Victoria Theodorides, John McCormack, Rosina Storchio, Elvino Ventura, Studio Conductor, Wilhelm Grüning, Maria Farneti, Fausta Labia, Clohilde Bressler-Gianoli, Luisa Bianco-Tamagno, Alfred Galand, Riccardo Stracciari, Georgette Brejean-Silver, Michael Vlachopoulos, Malka Bobkova, Lucy Malata, Aino Ackté, Jeanne Bourdon, Emilio Perea, Eugenia Burzio
