Columbia subject headings:
Art, Modern--20th century--Congresses.
Excellence--Congresses.
Masterpiece, Artistic--Philosophy--Congresses.
Perfection--Congresses.
Performing arts--Congresses.
Virtuosity in musical performance--Congresses.
Harvard subject headings:
Art, Modern--20th century--Congresses
Arts and society--Congresses
Excellence--Congresses.
Masterpiece, Artistic--Philosophy--Congresses.
Perfection--Congresses.
Performing arts--Congresses.
Virtuosity in musical performance--Congresses.
Princeton subject headings: