Michael Brook (born 1952 in Toronto, Ontario, Canada) is a Canadian guitarist, inventor, producer, and film music composer familiar with many disciplines including rock, minimalism and film scores. Along with Brian Eno, Brook is considered a founder of the ambient music movement. In the 70's he worked as an engineer with Daniel Lanois and played guitar with the band Martha & the Muffins. Later, he was introduced to Brian Eno and played on Eno's production of Fourth World, Vol. 1: Possible Musics, by Jon Hassell.