Noah Creshevsky was an American composer and electronic musician born Gary Cohen on January 31, 1945, in Rochester, New York. He studied at the Eastman School of Music and earned a Master of Music degree from the Juilliard School in 1968. Creshevsky founded the New York Improvisation Ensemble in 1966 and established an electronic music career in 1971. He developed an electroacoustic language using environmental sounds and coined the term âhyperrealismâ to describe his compositional style. Creshevsky served as a professor at Brooklyn College for 31 years and held faculty positions at Juilliard and Hunter College. His recording career featured the albums Man & Superman (1992), The Tape Music of Noah Creshevsky, 1971-1992 (2004), and Hyperrealist Music, 2011-2015 (2015). Scores of his compositions are archived at Northwestern University and the New York Public Library for the Performing Arts. Creshevsky died of bladder cancer on December 3, 2020.