Columbia subject headings:
Music--Spain--20th century--History and criticism.
Spain--History--Civil War, 1936-1939--Music and the war.
Spain--History--Civil War, 1936-1939--Songs and music.
War songs--Spain--History and criticism.
Harvard subject headings:
Music--Spain--20th century--History and criticism.
Spain--History--Civil War, 1936-1939--Music and the war.
Spain--History--Civil War, 1936-1939--Songs and music
War songs--Spain--History and criticism.
Princeton subject headings: