Organum is David Jackman, a British musician and visual artist. He is an elusive but significant figure in UK and international underground music with his extensive catalogue of intense drone works, mostly as the principal - and often sole - member of Organum.
Jackman's earliest known musical activity was as a member of Cornelius Cardew's Scratch Orchestra between 1969 and 1972. He later spoke highly of the value of his experiences in the ensemble, writing in 1994 that "I joined the orchestra in 1969 and soon found myself…
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