Jackman's earliest known musical activity was as a member of Cornelius Cardew's Scratch Orchestra between 1969 and 1972.
In 1995 he joined the contemporary music group the Cornelius Cardew ensemble.
Plus Minus's programming features a mixture of avant-garde and experimental traditions, focussing particularly on open-instrumentation pieces such as Stockhausen's Plus Minus, Andriessen's Worker's Union and Cardew's Treatise.
Cornelius Vanderbilt | Cornelius | Pope Cornelius | Lucius Cornelius Cinna | Cornelius Cardew | Cornelius Vanderbilt Whitney | Cornelius Lanczos | Peter von Cornelius | Cornelius Grogan | Cornelius Ryan | Cornelius Castoriadis | Publius Cornelius Scipio Nasica Corculum | Jerry Cornelius | Helen Cornelius | Cornelius Vermuyden | Cornelius, North Carolina | Cornelius (musician) | Cornelius Ludewich Bartels | Cornelius Jansen | Cornelius Bundrage | Joseph Cornelius O'Rourke | Heinrich Cornelius Agrippa | Cornelius Vander Starr | Cornelius Vanderbilt III | Cornelius Vanderbilt II | Cornelius P. Rhoads | Cornelius Nepos | Cornelius Lysaght | Cornelius Griffin | Cornelius Cole |
Although Deutsche Grammophon acquired the reputation of releasing mainstream classical recordings, from the 1960s onwards it released an increasing number of avant-garde recordings (initially under the Avant-Garde imprint), including Bruno Maderna, David Bedford, Cornelius Cardew, Luigi Nono and improvisations.
Von Biel studied piano, theory, and composition in Toronto (1956–57), Vienna (1958–60), New York (1960, with Morton Feldman, amongst others), London (1960, with Cornelius Cardew), and Cologne (with Karlheinz Stockhausen).