• 1947

    graduated in history and philosophy at the Philosophical Faculty of Masaryk University in Brno, 1949 (musicology)

  • 1951

    title of PhDr. at the Comenius University Philosophical Faculty in Bratislava, doctoral work Slovenská opera po Bellovi (Slovak Opera After Bella)

  • from 1955

    pedagogue at the University of Pedagogy in Bratislava. From 1959 to his retirement, pedagogue at the Department of Musicology at Comenius University Philosophical Faculty in Bratislava

  • 1968

    degree of CSc. for his work Leoš Janáček a Slovensko (Leoš Janáček and Slovakia: this formed part of his research on Czech-Slovak musical relationships)

In the field of research he focused on the history of music, history of Czecho-Slovak musical relationships, musical pedagogy and receptive musical education.

Jozef Tvrdoň’s publications comprise musico-theoretical textbooks and scripts, along with popularising works such as Hudba okolo nás (Music Around Us, 1962). He is the author of a number of musico-educational programmes broadcast by Czechoslovak Radio in Bratislava and TV programmes.