Fund of documentary sources of ANAS National Museum of Azerbaijan History was transferred the rare musical grades made by the outstanding Azerbaijani composer Uzeir Hajibeyli.

These musical grades are: “Hymn “, written in 1930 on the occasion of the 10th anniversary of establishment of Soviet power in Azerbaijan, and play of “Cantata”, written in 1934 for the 1000 anniversary of the great Iranian poet Ferdovsi.