Matrix and Straight Line Below

ref: John Cage, Fontana Mix, (New York, Henmar Press, 1960).

Dots below:

ref: John Cage, Fontana Mix, (New York, Henmar Press, 1960).

Curved lines below:

ref: John Cage, Fontana Mix, (New York, Henmar Press, 1960).

The superimposition of these transparency elements determines the selections of tape sounds and defines the length of each tape segment.