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Boulez had been working with a similar diagram
at the time, but he put numbers into the [magic] squares whereas I put in
aggregates
of sounds. They had no relation to harmony. They had no necessary direction.
Each was a musical fact, without any implication at all. If one moves in
this way one produces a continuity of sound that has nothing to do with
harmony and is freed, at the same time, from the imposition of one’s own
taste.
John Cage
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