James Tenney was born in 1934 in Silver City (New Mexico, USA), and grew up in Arizona and Colorado, where he received his early training as a pianist and composer. He attended the University of Denver, the Juilliard School of Music, Bennington College, and the University of Illinois. A performer as well as a composer and theorist, he was co-founder and conductor of the Tone Roads Chamber Ensemble in New York City (1963-70). He was a pioneer in the eld of electronic and computer music, working with Max Mathews and others at the Bell Telephone Laboratories in the early 1960s to develop programs for computer sound-generation and composition. He has written works for a variety of media, both instrumental and electronic, many of them using alternative tuning systems. He is the author of several articles on musical acoustics, computer music, and musical form and perception, as well as two books: Meta / Hodos: A Phenomenology of 20th-Century Musical Materials and an Approach to the Study of Form (1961; Frog Peak, 1988) and A History of ‘Consonance’ and ‘Dissonance’ (Excelsior, 1988). He has taught at the Polytechnic Institute of Brooklyn, the University of California, at York University in Toronto, and at the California Institute of the Arts.