Columbia subject headings:
Karajan, Herbert von.
Monteverdi, Claudio, 1567-1643.
Music--Philosophy and aesthetics--Congresses.
Harvard subject headings:
Karajan, Herbert von--Congresses.
Monteverdi, Claudio, 1567-1643--Congresses.
Monteverdi, Claudio, 1567-1643. Incoronazione di Poppea--Congresses.
Music and technology--Congresses.
Music--Philosophy and aesthetics--Congresses
Princeton subject headings:
Karajan, Herbert von.
Monteverdi, Claudio, 1567-1643.
Music--Philosophy and aesthetics--Congresses.