Alexander Glazunov Portrait of Glazunov by Ilya Repin, 1887 (1865 – 21 March 1936) was a Russian composer, music teacher, and conductor of the late Russian Romantic period.He served as director of the Saint Petersburg Conservatory between 1905 and 1928 and was instrumental in the reorganization of the institute into the Petrograd Conservatory, then the Leningrad Conservatory..