During the mix-down of LIGHT PICTURES it became apparent that only a comparison of the sounds of the flute and trumpet with and without ring modulation reveals how characteristic the timbres of these instruments (and thus of the overall sound) become through the ring modulation.

Therefore, the recording on CD 68A is with ring modulation (as 3rd scene of SUNDAY from LIGHT) and the recording on CD 68B is without ring modulation (for study purposes).

The various amounts of ring modulation used were chosen during the mix-down according to the contexts. The special mixture of timbres for this work is what makes it unique.