Matthew Jonathan Greenbaum (New York City, February 12, 1950) is an American composer.
He studied privately with Stefan Wolpe, and with Mario Davidovsky at the Graduate Center of the City University of New York.
He holds a Ph.D.
in Composition from the City University of NY Graduate Center (1985), and has served as a professor of music composition at Temple University's Boyer College of Music and Dance since 1998.
Since 1999 Greenbaum has worked with computer animation to create hybrid works of visual music, as well as chamber music with a video component.
Greenbaum has also written on Debussy, Schoenberg and Varèse in relation to Wolpe's dialectical and "cubist" approach to musical structure.
He is the curator of Amphibian, a new music and video series in the Hiart Gallery in New York.