Columbia subject headings:
Dallapiccola, Luigi, 1904-1975--Congresses.
Music--Austria--Vienna--History and criticism--Congresses.
Second Viennese school (Group of composers)--Congresses.
Harvard subject headings:
Dallapiccola, Luigi, 1904-1975--Congresses.
Music--Austria--Vienna--History and criticism--Congresses.
Second Viennese school (Group of composers)--Congresses.
Princeton subject headings:
Dallapiccola, Luigi, 1904-1975--Congresses.
Schoenberg, Arnold, 1874-1951--Influence--Congresses.
Vienna (Austria)--History--20th century--Congresses.