Gordon, E.E.Toward the development of a taxonomy of tonal patterns and rhythm patterns: Evidence of difficulty level and growth rate. Experimental research in the psychology of music: Studies in the psychology of music , 1974, 9, 39-232.
3.
Gordon, E. E. Tonal and rhythm patterns : An objective analysis. Albany : State University of New York Press, 1976.
4.
Gordon, E. E.A factor analytic description of tonal and rhythm patterns and objective evidence of pattern difficulty level and growth rate. Chicago: G.I.A. Publications , 1978.
5.
Gordon, E.E.Primary measures of music audiation. Chicago: G.I.A. Publications, 1979.