Columbia subject headings:
Music--20th century--History and criticism.
Music--History and criticism.
Music--Switzerland--20th century--History and criticism.
Harvard subject headings:
Hindemith, Paul, 1895-1963--Criticism and interpretation.
Music--20th century--History and criticism
Music--History and criticism
Music--Switzerland--20th century--History and criticism.
Princeton subject headings:
Music--History and criticism.
Music--Switzerland--20th century--History and criticism.