Columbia subject headings:
Harvard subject headings:
Authenticity (Philosophy)
Mahler, Gustav, 1860-1911--Criticism and interpretation.
Music--Philosophy and aesthetics
Nietzsche, Friedrich Wilhelm, 1844-1900
Nietzsche, Friedrich Wilhelm, 1844-1900--Contributions in music.
Princeton subject headings:
Mahler, Gustav, 1860-1911--Criticism and interpretation.
Music--Philosophy and aesthetics.
Nietzsche, Friedrich Wilhelm, 1844-1900.