The Wire
Cornelius Cardew is one of the strangest figures in post-war British music. He began as a disciple of Stockhausen and there weren't too many of those this side of the Channel — before turning to Cage (ditto this side of the Atlantic). He then abandoned both for a career of political activism through his Scratch Orchestra. Other composers showed a similar turn through the 60s and 70s notably Frederic Rzewski and Luigi Nono — but Cardew's reaction was the most extreme.