8E. T. A. Hoffmann, "Review of Beethoven's Fifth Symphony," from E. T. A. Hoffmann's Musical Writings. Kreisleriana, The Poet, and the Composer, Music Criticism, David Charhon ed. , Martyn Clarke trans. , Cambridge. Cambridge University Press, 2003, p. 236.
9Mark Evan Bonds, "Idealism and the Aesthetics of Instrumental Music at the Tum of the Nineteenth Century," Journal of the American Musicological Society, Vol. 50, No. 2/3 ( Summer - Autumn, 1997 ) , pp. 387 - 402.
10Clement Greenberg, "Avant - Garde and Kitsch" in Partisan Review 6 ( Fall, 1939 ), pp. 34 -49.
