greatest success was his postal tuition courses, which later became The Schillinger System of Musical Composition, published posthumously by Lyle Dowling and Arnold Shaw. Schillinger accredited a small group of students as qualified teachers of his system, and after his death, one of them, Lawrence Berk, founded a music school in Boston to continue its dissemination. Schillinger House opened in 1945 and later became the Berklee College of Music, where the system survived in the curriculum until the early 1970s. There has been debate about how many teachers Schillinger certified. The numbers cited range from seven to twelve. To date, only seven certified teachers of the Schillinger System have been substantiated. Three certified teachers were Asher Zlotnik of Baltimore, Maryland (a student and personal friend of Dowling), Edwin Gerschefski, and Roland Wiggins. References Further reading Anderson, Ruth. Contemporary American composers. A Biographical Dictionary, 2nd edition, G. K. Hall, 1982, Arden, Jeremy, "Keys to the Schillinger System, course A, Basic principles and foundations"; Rose Books 2006, Arden. Jeremy, Keys to the Schillinger System, course B, Basic principles and foundations.; Rose Books 2008, Arden, Jeremy, "Focussing the musical imagination: exploring in composition the ideas and techniques of Joseph Schillinger", Ph.D. thesis 1996, City University, London. Augustine, Daniel. "Four Theories of Music in the United States, 1900-1950: Cowell, Yasser, Partch, Schillinger," Ph.D. diss., University of Texas, 1979. Backus, John. "Pseudo-Science in Music," Journal of Music Theory 4 (1960): 221-232. Beyer, Richard. "George Gershwin's Variations on 'I Got Rhythm'," Musica 49/4 (July-Aug 1995): 233-238. Brodsky, Warren. "Joseph Schillinger (1895-1943): Music Science Promethean" American Music 21/1 (Spring, 2003): 45-73. Burk, James M. "Schillinger's Double Equal Temperament System." In The Psychology and Acoustics of Music: a Collection of Papers, ed. E. Asmus. Lawrence, KS: [publisher], 1979. Burk, James M. "Joseph (Moiseyevich) Schillinger," in New Grove Dictionary of American Music, ed. By H. Wiley Hitchcock. New York: Macmillan/Groves Dictionaries, 1986. Butterworth, Neil. A Dictionary of American Composers, Garland, 1984. Carter, Elliott. "The Schillinger Case: Fallacy of the Mechanistic Approach." Modern Music 23 (1946): 228-230. Cowell, Henry and Sidney. "The Schillinger Case: Charting the Musical Range," Modern Music 23/3 (1946): 226-8 Cowell, Henry. "Joseph Schillinger as Composer," Music News 39/3 (1947): 5-6 Dowling, Lyle. A Brief Note on the Schillinger System. New York: Allied Music, 1942. Duke, Vernon. "Gershwin, Schillinger, Dukelsky: Some Reminiscences," Musical Quarterly 33/1 (1947): 102-115 Gilbert, Steven E. "Gershwin's Art of Counterpoint." Musical Quarterly 70/4