Spiral form

Alfred Whitford (Fred) Lerdahl (born March 10, 1943, in Madison, Wisconsin) is the Fritz Reiner Professor of Musical Composition at Columbia University, and a composer and music theorist best known for his work on musical grammar and cognition, rhythmic theory, pitch space, and cognitive constraints on compositional systems. He has written many orchestral and chamber works, three of which were finalists for the Pulitzer Prize for Music: Time after Time in 2001, String Quartet No. 3 in 2010, and Arches in 2011.

Lerdahl studied with James Ming at Lawrence University, where he earned his BMus in 1965, and with Milton Babbitt, Edward T. Cone, and Earl Kim at Princeton University, where he earned his MFA in 1967. At Tanglewood he studied with Arthur Berger in 1964 and Roger Sessions in 1966. He then studied with Wolfgang Fortner at the Hochschule für Musik in Freiburg/Breisgau in 1968-69, on a Fulbright Scholarship. Lerdahl was awarded an honorary doctorate from Lawrence University in 1999, and previously taught at the University of Michigan, Harvard University, and the University of California at Berkeley. He is a member of the American Academy of Arts and Letters.