Columbia subject headings:
Folk music--Nigeria--History and criticism.
Igbo (African people)--Music--History and criticism.
Harvard subject headings:
Folk music--Nigeria--History and criticism.
Igbo (African people)--Music--History and criticism.
Music--Nigeria--History and criticism.
Princeton subject headings:
Folk music--Nigeria--History and criticism.
Igbo (African people)--Music--History and criticism.