| 
 
AGUIRRE Concurso International Piano Bilbao 1961
 
 
 | 
 
BALTHASAR 13e Festival Strasbourg 1951
 
 
 | 
 
BALTHASAR 12e Festival Strasbourg 1950
 
 
 | 
| 
 
BRUUN Jean Sibelius Finlandia fond blanc
 
 
 | 
 
BRUUN Jean Sibelius Finlandia fond bleu
 
 
 | 
 
DOEVE Holland Festival
 
 
 | 
| 
 
International Festival Bergen 1954
 
 
 | 
 
GERSTER Festival Salzburg 1938
 
 
 | 
 
HRSKA Festival International Musique Prague 1924
 
 
 | 
| 
 
MEERWALS Bayreuth 1952
 
 
 | 
 
MOLNAR Festival International Georges Enesco Bucarest 1958
 
 
 | 
 
NAGL Festival Vienne 1953
 
 
 | 
| 
 
OST Conservatorium van Muziek
 
 
 | 
 
PELLENS Festival Bethoven Anvers 1921
 
 
 | 
 
VEGA Festival de Liège 1957
 
 
 |