Columbia subject headings:
Music--Political aspects--Chile--History--20th century.
Music--Social aspects--Chile--History--20th century.
Political ballads and songs--Chile--20th century--History and criticism.
Songs, Spanish--Chile--20th century--History and criticism.
Harvard subject headings:
Music--Political aspects--Chile--History--20th century.
Music--Social aspects--Chile--History--20th century.
Political ballads and songs--Chile--20th century--History and criticism.
Songs, Spanish--Chile--20th century--History and criticism.
Princeton subject headings:
Political ballads and songs--Chile--History and criticism.
Popular music--Political aspects--Chile.
Popular music--Social aspects--Chile--History--20th century.