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. . . I used the Fontana
Mix. . . . overlaying
transparencies involving points and curved lines which don’t cross over
themselves. A given line doesn’t cross over itself but it goes
in curving,
meandering ways from one side of the page to another. These curving lines
are six in number and are differentiated by thickness (three are dotted)
and you simply place them over the sheet with points—one sheet with
points
and one sheet with curved lines—and then a graph with one that is inside,
and one measures the intersection of the curved lines with this straight
line with reference to the graph vertically, to determine the kind of thing
that would happen. The horizontal measurement gives the
time. . . .
John Cage
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