Title: Konstanty muzyki
Subjects: Correspondence, Music, Opera
People: Nikolay Rimsky-Korsakov (1844-1908), M. S. Druskin (1905-1991), Boris Arapov (1905-1992), M. Mikhaĭlov, A. N. Dmitriev (1908-1978), Sergey Prokofiev (1891-1953), Dmitriĭ Dmitrievich Shostakovich (1906-1975)