Columbia subject headings:
Composition (Music)
Creation (Literary, artistic, etc.)
Music--20th century--History and criticism.
Harvard subject headings:
Composition (Music)
Creation (Literary, artistic, etc.)
Creation (Literary, artistic, etc.)--History--20th century
Music--20th century--History and criticism
Princeton subject headings:
Creation (Literary, artistic, etc.)
Music--20th century--History and criticism.