Bachelor, Harvard College, Cambridge, 1961. Master of Arts in Musicology, Columbia University, New York City, 1965. Doctor of Philosophy in Musicology, Columbia University, New York City, 1968.
Instructor music history Johns Hopkins University, Baltimore, 1968—1969. Assistant professor musicology Columbia University, New York City, 1969—1975. Faculty new music, chamber music, music history Juilliard School, since 1970.
Associate professor musicology City University of New York, 1975—1983.
Board member Fromm Foundation, Cambridge, since 2007, Charles Ives Society, New York City, 2006.
Married Gail August (divorced). Children: Erica Judith, David Matthew.