Title: Chetvero druzhnykh
Subjects: Composers, Biography, Music, History and criticism
Places: Russia (Federation), Saint Petersburg
People: V. M. Bogdanov-Berezovskiĭ (1903-1971), Olesʹ Chishko, I. Gusin (1905-1968), V. Sorokin (1914-1997)
Time periods: 20th century