David Jackman is a British musician and visual artist known for his extensive catalogue of drone works, primarily as the principal and often sole member of the music project Organum.
Jackman's musical journey began as a member of Cornelius Cardew's Scratch Orchestra where he was an active participant from 1969 to 1972.
He highly valued his experience in the ensemble, writing in 1994: "I joined the orchestra in 1969 and soon found myself thrown into an energetic environment where to my surprise my musical ideas, however tentative, would be taken seriously and would actually get realised".
It was not until 1983 that he adopted the moniker Organum and began releasing music on vinyl through various European labels and his own imprint, Aeroplane.
[2] He is also known for the distinctive artwork which adorns his releases, mostly surreal colourful collages, often meticulous in their detail.