In life, when we encounter a fork in the road, we must choose one direction, and we can only wonder what might have happened if we had chosen another. In art, we are allowed to experience alternatives. Each of the two movements of String Quartet No. 6: Rapid Eye has two optional endings. For the first movement, the first optional ending is scored for the live quartet, but a soundtrack is available from the publisher that should be played with the second optional ending. The soundtrack (tuned to A-441) is
approximately 50 seconds long, and should begin in measure 277, as indicated in the score. The playback should be balanced so that both the soundtrack and the string quartet are clearly audible, though mostly pianissimo. If the soundtrack is used in the first movement, the penultimate passage of the second movement should incorporate electronic amplification and reverberation, as indicated on page 24. Otherwise, the second movement may be played as a purely acoustic composition.