This paper examines examples of professional choreographic art of Buryatia – Zhigzhit Batuev’s ballets “Geser” (1967) and “The Son of the Earth” (1972), created on the basis of national heroic epic (ьliger). Connecting traditional methods of historical musicology with the techniques of literary analysis comprise a comprehensive approach to the study of folk and professional art. Comparison of the folklore source based on realizing shamanic mythology’s plot motifs and images with the text of the libretto helped the researcher to identify the main stages in the dramatic development of ballets and reveal the speciёcs of the interpretation of national heroic and archaic epic in musical stage productions.