A look back to the front line of the music revolution when composers' rule books were torn up. John Cage 's infamous 4 '33", in which a pianist sits on stage forthattime in total silence, led the wayto a brief, mad, ground-breaking period when staid classical music was the most radical of all the arts. It spearheaded the way forthe revolutionary rock, art and theatre movements of the sixties. Presented by Alyn Shipton. Producer Paul Evans
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