1. Adorno, Theodor W. 1962. Introduction to the sociology of music. Trans. E.B. Ashton, 1988. New York: Continuum.
2. Adorno, Theodor W. 1998. Beethoven: The Philosophy of music. (Fragments and Texts), ed. Rolf Tiedemann. Stanford: Stanford University Press.
3. Bach, Carl Philipp Emanuel. 1753. Essay on the true art of playing keyboard instruments. Trans. William J. Mitchell, 1949. New York: Norton.
4. Bach, Carl Philipp Emanuel, and Agricola, Johann Friedrich. 1750. Obituary of the world-famous organist, Mr. Johann Sebastian Bach…, 215–224. New York: Norton. (Reprinted in The Bach Reader. ed. Hans T. David and Arthur Mendel, 1966).
5. Bamberger, Jeanne. 1976. The musical significance of Beethoven’s fingerings in the piano sonatas. Music Forum 4:237–280.