- Alfons Kontarsky & Aloys Kontarsky
- Claudio Arrau, Wilhelm Kempff & Yves Nat
- Martha Argerich & Mikhail Pletnev
- Dino Ciani & Tamás Vásáry
- György Cziffra, Sviatoslav Richter & Lazar Berman
- Vlado Perlemuter, Clara Haskil, Emil Gilels, Sviatoslav Richter & Leon Fleisher