Dennis Johnson

Dennis Lee Johnson (November 19, 1938 – December 20, 2018) was a mathematician and minimal composer. He is the namesake of the Johnson homomorphism in the study of mapping class groups of surfaces. Johnson’s early talent for mathematics earned him a full scholarship to the Phillips Exeter Academy, New Hampshire, where he completed high school. He enrolled to study mathematics at the California Institute of Technology in 1956. But after a year he became disillusioned, and although he had studied the piano only casually as a child, he decided to transfer to the University of California, Los Angeles (UCLA), to study music. Johnson is credited as having composed one of the first truly minimal compositions, November, which was written for solo piano in 1959 and later revised. The creation of November was inspired by Johnson's UCLA college friend La Monte Young's Trio for Strings, written in 1958. November is a pensive piano piece that runs for nearly six hours and predates all other known minimalist works in its use of additive process and diatonic tonality. Part of it was recorded by Johnson in 1962 on audio cassette. November was in return an inspiration for Young's later 1964 The Well...

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