Over the years, he portrayed not only staple roles by Smetana, Dvořák, Janáček and Martinů but also characters in the operas of Fibich, Karel Kovarovic, Otakar Ostrčil, Eugen Suchoň and Ján Cikker.
At the end of the first International Festival of Modern Music in Salzburg, in 1922, his 'Six Songs' were performed alongside Schoenberg's Second Quartet; three years later, at the 3rd ISCM Festival in Prague, his Concertino for Piano and Orchestra shared a programme with Martinu's 'Half-Time' and Vaughan Williams's 'A Pastoral Symphony'.