“I began the window series in 1971. My initial intent was to paint a series of value and color studies for myself. The first form chosen was a rectangle within a rectangle within a rectangle. Other tripartite forms were explored and excused. The concluding form (triptychs/landscapes), in which the three rectangles are squared, taken apart and stacked, appears to be the termination of that initial intent.
The triptychs free me of previous academic considerations associated with making paintings. Composition and other artistic stunts are gone. Nothing remains except the three color-weights, the relationship of each trio and the feeling that something is right.“
— Harold Joe Waldrum, May 1981