Franz Pacal, Irene Abendroth, Annie Dirkens, Louise Kirkby Lunn, Selma Kurz, Joseph O'Mara, Felix Asch, Studio Pianist, Ellen Beach Yaw, Desire Pauwels, Hermann Winkelmann, Kate Cove, Paul Daraux, Giovanni Apostulo, Rene Fournets, Edna May, Theodor Bertram, Edith Clegg, Gabriel Soulacroix, Fraulein Vroni Eidner, A. Del Campo, Leopold Demuth, Les Troubadors Toulousains, W.A. Fransella, Caro Roma, Ferruccio Giannini, Marie Tempest
