- Grace Bumbry & Geoffrey Parsons
- Osiris Trio, Peter Brunt, Ellen Corver & Larissa Groeneveld
- Studio Orchestra, Beniamino Gigli, Rosario Bourdon, Josef A. Pasternack, Josef Pasternack Orchestra, Titta Ruffo, Giuseppe De Luca, Giulio Setti, Ezio Pinza, amelita Galli-Curci, Louise Homer, Angelo Bada, Bruno Reibold & Elisabeth Rethberg
- Allegri String Quartet & James Campbell