(b NY, 1927).
Amer. pianist and author. Début NY 1951. Prof. of mus., State Univ. of NY from 1971. Among his books are The Classical Style (1971); Schoenberg (1975); Sonata Forms (1980); The Romantic Generation (1995); and Piano Notes: the World of the Pianist (2002). Noted for his playing of Bach's Goldberg Variations, late Beethoven sonatas, and Debussy. Has given important perfs. of Schoenberg, Webern, Carter, and Boulez.