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