- Cowell, Henry. New Musical Resources. New York: Cambridge University Press, 1996
- ______. "Preface". Quartet Romantic; Quartet Euphometric. New York: C. F. Peters, 1974 [reprinted in part: Higgins, Dick, ed. Essential Cowell: Selected Writings on Music. Kingston, NY: McPherson and Company, 2002, 200-203]
- Davies, Hugh. "Rhythmicon (Polyrhythmophone)." New Grove Dictionary of Musical Instruments. Ed. Stanley Sadie. 3 vols. London: MacMillan Press, 1984
- Didkovsky, Nick. "The Online Rhythmicon." American Mavericks. [WWW document]. URL http://musicmavericks.org/rhythmicon/ (2003)
- Glinsky, Albert. Theremin: Ether Music and Espionage. Urbana: University of Illinois Press, 2000
- Henderson, William. "Rhythmicon." Rhythmicon: Systems/Atmospherics. John Came. CD. Mute Records, 1995
- Koenigsberg, Christopher K. "A Comparison of Henry Cowell's Rhythmic Concept with Stockhausen." Karlheinz Stockhausen's New Morphology of Musical Time. [WWW Document]. URL http://www.music.princeton.edu/~ckk/smmt/ (2007, Sep. 21)
- [liner notes]. The Art of the Virtual Rhythmicon. Various artists. CD. Innova Recordings, 2006
- Mead, Rita. Henry Cowell's New Music, 1926-1936: The Society, the Music Editions, and the Recordings. Ann Arbor, UMI Research Press, 1981
- Miessner, William O. Method and Apparatus for Sounding Selective Rhythms and Beats. [WWW document]. URL http://patft.uspto.gov/netahtml/PTO/srchnum.htm (2007, Sep. 21) [Enter patent number: 1887857]
- Mooney, David. "The Rhythmicon: the 20th Century Instrument that Refuses to Die." SEAMUS News. issue 4 (2007), 10-11
- Partch, Harry. Genesis of a Music: An Account of a Creative Work, Its Roots and Its Fulfillments. 2nd ed. New York, Da Capo Press, 1974
- Roads, Curtis. Microsound. Cambridge, MA: The MIT Press, 2001
- Schedel, Margaret. "Anticipating Interactivity: Henry Cowell and the Rhythmicon." Organized Sound. 7:3 (2002), 247-254
- ______. "The Rhythmicon or ‘Polyrhythmophone’". [WWW document]. URL http://www.obsolete.com/120_years/machines/rhythmicon (1997, Dec 1) [Confirmed as Schebel's work via email correspondence] [October, 2011: site is gone.]
- Schonberg, Harold C. "Music: Leon Theremin; Inventor of Instrument Bearing His Name Is Interviewed in the Soviet Union." New York Times, (April 26, 1967), 40
- "A Short History of the Rhythmicon." [WWW document]. URL http://www.mutelibtech.com/mute/came/camemore.htm (1997, Dec 1) [October, 2011: site is gone.]
- Slonimsky, Nicolas. Perfect Pitch: A Life Story. Oxford: Oxford University Press, 1988
- Smith, Leland. "Henry Cowell's Rhythmicana." Yearbook for Inter-American Musical Research, 9 (1973), 134-147
- Stallmann, Kurt. "An Interview with Max Mathews." SEAMUS News, issue 3 (2007), 1-5
- Szigeti, Joseph. With Strings Attached: Reminiscences and Reflections. 2nd ed. New York: Knopf, 1967
- Theremin: An Electronic Odyssey. Videocassette. Dir Steven M. Martin, 1995
- Wilkinson, Scott R. Tuning in Microtonality in Electronic Music. Milwaukee, WI, Hal Leonard Books, 1988.
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