 He became a full member of the Slovenian Academy of Sciences and Arts in 1970, a corresponding member of the Serbian Academy of Sciences and Arts in 1968, a corresponding member of the Croatian Academy of Sciences and Arts in 1979, and an honorary member of the Croatian Music Institute in 1978.He received the Prešeren Award in 1961 for his work "Zgodovino glasbene umetnosti na Slovenskem" (History of Music in Slovenia), the Herder Prize in 1972, the AVNOJ Award in 1982, and the Kidrič Award in 1988.He research initially focused on issues of music theory and education, but soon after 1945 he started focusing on music history.