Nolan, Catherine. 2002. "Music Theory and Mathematics". In The Cambridge History of Western Music Theory, edited by Thomas Christensen, 272–304. Cambridge: Cambridge University Press. Quinn, Ian. 2004. A Unified Theory of Chord Qualities in Equal Temperament. Ph. D. diss. Rochester: Eastman School of Music, University of Rochester. Rothstein, Edward. 28 June 2003. "A Seeker of Music's Poetry in the Mathematical Realm," The New York Times. Satyendra, Ramon. 2004. "An Informal Introduction to Some Formal Concepts from Lewin's Transformational Theory." Journal of Music Theory 48, no. 1:99–141 External links Obituary and Faculty Memorial, The Harvard Gazette David Lewin papers, 1945–2011, Music Division, Library of Congress Professor David Lewin manuscript scores, 1955-1991 at Isham Memorial Library, Harvard University American music theorists Harvard University alumni Princeton University alumni Harvard Fellows University of California, Berkeley College of Letters and Science faculty Harvard University faculty 1933 births 2003 deaths Pupils of Edward T. Cone Pupils of Roger Sessions 20th-century American musicologists 20th-century American composers American contemporary classical composers Composers from New York City