Robert Heger

Enrico Caruso, Amelta Galli-Curci, The Victor Orchestra, Pablo Casals, Nicolai Mednokov, Peter Dawson, Gerald Moore, Feodor Chaliapin, Wanda Landowska, Master Ernest Lough, George Thalben-Ball, The Choir of Temple Church London, Andrés Segovia, John McCormack, Edwin Schneider, Lawrence Tibbett, Marguerite...