Columbia subject headings:
Folk music--Russia (Federation)--History and criticism.
Folk music--Soviet Union--History and criticism.
Harvard subject headings:
Folk music--Russia (Federation)--History and criticism
Folk music--Russia--History and criticism.
Folk music--Soviet Union--History and criticism
Musical instruments--Russia (Federation)--History.
Musical instruments--Russia--History.
Musical instruments--Soviet Union--History.
Princeton subject headings: