• 1936 – 1937

    organ course for Town School of Music in Bratislava   

  • from 1937

    choralist and organist of the Bratislava Church Music Association (Kirchenmusikverein) 

  • 1938 – 1943

    Musical and Dramatic Academy in Bratislava (organ – A. Ledvina, Š. Németh-Šamorínsky, J. Weber)  

  • 1943 – 1946

    Musical and Dramatic Academy in Bratislava (conducting – J. Vincourek, K. Schimpl) 

  • 1948 – 1953

    conductor of the professional Czechoslovak Radio Mixed Choir in Bratislava (later Slovak Philharmonic Choir)  

  • 1949 – 1953

    Academy of Performing Arts, Bratislava (conducting – Václav Talich) 

  • 1954 – 1955

    study stay with Jevgenij Mravinsky, conductor-in-chief of the Leningrad Philharmonic (1955 as his assistant) 

  • 1955

    conductor of the Czechoslovak Radio Symphony Orchestra in Bratislava   

  • 1956 – 1961

    conductor-in-chief of the Czechoslovak Radio Symphony Orchestra in Bratislava   

  • 1959

    second conductor of the Czech Philharmonic (along with Karlo Ančerle) on a three-month tour in USA, Australia, New Zealand, Japan, China, India, and the former Soviet Union

  • 1959 – 1970

    Union of Slovak Composers (1961 – 1963 president of the concert artists’ section, 1959 – 1963 and 1967 – 1969 member of the committee and the presidium, 1969 – 1970 vice-president of Union)

  • 1961 – 1981

    conductor-in-chief and 1961 – 1968 simultaneously artistic director of Slovak Philharmonic 

  • 1965, 1973

    conductor-in-chief BBC Australia Radio Orchestra in Adelaide  

  • 1967

    tour with Czech Philharmonic in USA and Canada  

  • 1972 – 1975

    conductor-in-chief of the Prague Symphony Orchestra FOK (as first Slovak conductor holding the position of conductor-in-chief of a Czech body) 

  • from 1976

    lecturer in conducting at the Academy of Performing Arts, Bratislava (from 1978 professor) 

  • 1983 – 1985

    conductor-in-chief State Philharmonic, Košice

  • - member of the Slovak Music Council and member of the festival juries of Bratislava Music Festival, Prague Spring and other selection commissions and juries

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