References
Forte, A. and Gilbert, S. (1982) An Introduction to Schenkerian Analysis, New York, W.W. Norton.
Lerdahl, F. and Jackendoff, R. (1983) A Generative Theory of Tonal Music, Cambridge, MA, MIT Press.
Schenker, H. ([1935] 1979) Free Composition (DerFreie Satz), trans. and ed. by E. Oster, 2 vols, New York, Longman.