Columbia subject headings:
Bloch, Ernst, 1885-1977.
Music--Philosophy and aesthetics--History--20th century.
Harvard subject headings:
Bloch, Ernst, 1885-1977--Criticism and interpretation.
Bloch, Ernst, 1885-1977--Metaphysics.
Music--Philosophy and aesthetics--History--20th century.
Princeton subject headings:
Bloch, Ernst, 1885-1977.
Music--Philosophy and aesthetics--History--20th century.