World premiere of the violin concerto “Musik der Trauer” (the later “Concerto funebre”) composed in 1939 in St. Gallen by Ernst Klug

Start of the western campaign of the German Wehrmacht on May 10, 1940; a radio premiere of “Simplicius Simplicissimus”, a piece of music calling for political upheaval, had been planned for the end of May on Brussels Radio and is cancelled by the radio station because of concerns about the consequences

A world premiere of the “Sinfonia tragica”, nevertheless scheduled by and also dedicated to Paul Collaer, the head of the music department of the Belgian Radio, cannot take place either