Patrick Gleeson (born November 9, 1934) is a musician, synthesizer pioneer, composer and producer, from California, USA.
Gleeson began experimenting with electronic music in the mid-'60s at the San Francisco Tape Music Center using a Buchla synth and other devices. In 1968, "upon hearing Wendy Carlos' Switched-On Bach", he bought a Moog synthesizer and opened recording studio Different Fur.
He worked with Herbie Hancock in the early 1970s, touring with Hancock – thus pioneering the use of synthesizers outside the studio – and appearing on the albums Crossings and Sextant. Hancock has credited Gleeson with introducing him to synthesizers and teaching him technique.Sextant and Headhunters were both recorded in part at Different Fur studios. Gleeson has worked with many other Jazz musicians, including Lenny White, Freddie Hubbard, Charles Earland, Eddie Henderson and Joe Henderson.
Gleeson recorded a number of solo albums, starting with Beyond the Sun - An Electronic Portrait of Holst's "The Planets" in 1976, to which Walter Carlos contributed the sleeve notes. The album was nominated for a "best engineered recording-classical" Grammy in 1976.Beyond the Sun was followed in 1977 by a more commercial album, Patrick Gleeson's Star Wars.