[2] Due to his friendship with the family of Dušan Trbojević, a distinguished Serbian pianist and composer, he familiarized himself with the art of opera as well as operatic and concerto performing.
[citation needed] His operatic repertoire included more than 90 roles which he interpreted with his rich voice and his dramatic strength.
By many music historians and critics he is regarded as the greatest ever Boris Godunov, right after Feodor Chaliapin.
His concert repertoire consisted of 520 pieces that included solo songs, song-cycles, cantatas and oratorios.
He was awarded twice by International Jury of Critics in France as the best singer of the season at the Festival Theatre of Nations in Paris, in 1959 (for the role of Mephistopheles) and in 1961 (for that of Boris Godunov).