Columbia subject headings:
Harmony (Aesthetics)
Music--Philosophy and aesthetics.
Organ (Musical instrument)
Harvard subject headings:
Harmony (Aesthetics)
Jahnn, Hans Henny, 1894-1959.
Music--Philosophy and aesthetics
Organ (Musical instrument)
Princeton subject headings:
Jahnn, Hans Henny, 1894-1959--Biography--Careers.
Jahnn, Hans Henry, 1894-1959--Knowledge--Music.
Music and literature.
Organ (Musical instrument)--Construction.