Nadezhda Yakovlevna Bryusova (1881-1951), music educator, musicologist. Teacher of theory of music and music folklore (1921-1943, since 1921- professor (1922-1928). Together with Semyon Isaakovich Schliefstein (1903-1975), a graduate of the Conservatoire, in the USSR peoples` history of music study (the 1940s).