The underlying chessboard image is derived from modified TV test pattern apparatus distorted by audio signals from a sine-wave generator; filmed off a monitor with super-8, then coloured in with black ink and coated with household bleach. After initial editing on film it was compiled into positive, negative and split screen in a 1-2-4-2-1 sequence. The 4 track electronic music made with Helliwell’s self-built circuits, also follows this symmetrical order.