Beniamino Gigli, Orchestra of the Royal Opera House, Umberto Berrettoni, Prussian State Cappella Orchestra, Philharmonia Orchestra, Studio harpist, Milan Symphony Orchestra, Rainaldo Zamboni, Argeo Quadri, Orchestra del Teatro alla Scala di Milano, Philharmonia Chorus, Studio Orchestra, Vito Carnevali, Bruno Seidler-Winkler, Rina Gigli, Stanford Robinson
