Robert David Grusin (born June 26, 1934) is an American composer, arranger, producer, jazz pianist, and band leader. He has composed many scores for feature films and television, and has won numerous awards for his soundtrack and record work, including an Academy Award and 10 Grammy Awards. In 1978, Grusin founded GRP Records with Larry Rosen, and was an early pioneer of digital recording.

Source: Wikipedia (https://en.wikipedia.org/wiki/Dave_Grusin)