Columbia subject headings:
Law and art--History--Congresses.
Law in art--History--Congresses.
Law in opera--History--Congresses.
Music trade--Law and legislation--History--Congresses.
Music--History and criticism--Congresses.
Harvard subject headings:
Copyright--Broadcasting rights--Congresses.
Copyright--Music--Congresses.
Festschriften.
Music trade--Law and legislation--Congresses.
Rouland, Norbert
Princeton subject headings:
Law and art--History--Congresses.
Law in art--History--Congresses.
Law in opera--History--Congresses.
Music trade--Law and legislation--History--Congresses.
Music--History and criticism--Congresses.