Columbia subject headings:
Aesthetics--Congresses.
Artists' preparatory studies--Congresses.
Arts--Philosophy--Congresses.
Creation (Literary, artistic, etc.)--Congresses.
Unfinished works of art--Congresses.
Harvard subject headings:
Music--Philosophy and aesthetics--Congresses
Performance art--Philosophy--Congresses.
Princeton subject headings:
Aesthetics--Congresses.
Artists' preparatory studies--Congresses.
Arts--Philosophy--Congresses.
Creation (Literary, artistic, etc.)--Congresses.
Unfinished works of art--Congresses.