Edmond Clement, Ella Tordek, Emilio De Gogorza, Studio Orchestra, Giovanni Malipiero, Louis Morturier, Richard Mayr, Pol Plançon, Maurice Renaud, Jean Planel, Berthe Auguez De Montalant, Giuseppe Krismer, Georgette Frozier-Marrot, Georges Thill, Giovanni Zenatello, Luise Hofer, Germaine Martinelli, Giorgina Caprile
Margaret Keyes, Florencio Constantino, Melitta Heim, Marie Rappold, Studio Orchestra, Arthur Middleton, Studio Conductor, Alessandro Bonci, Maria Avezza, Alice Verlet, Carlo Galeffi, Maria Farneti, Selma Kurz, Francesco Daddi, Leo Slezak, Guido Ciccolini, Dan Beddoe, Adelina Agostinelli, Giovanni Zenatello, Merle Alcock
Studio Pianist, Studio Orchestra, Gemma Bellincioni, Giovanni Zenatello, Eugenio Giraldoni, Angelica Pandolfini, Fiorello Giraud, Fernando Valero, Francesco Marconi
