Columbia subject headings:
Radio broadcasting--Greece.
Radio broadcasting--Music.
Radio broadcasting.
Harvard subject headings:
Choruses--Greece.
Radio broadcasting
Radio broadcasting--Greece.
Radio broadcasting--Music.
Princeton subject headings:
Choirs (Music)--Greece--History--20th century.
Musicians--Greece--Biography.
Performing arts--Greece--Athens--History--20th century.
Radio broadcasting--Greece--Athens--History--20th century.