Irvine, CA: The Art Gallery of the University of California, Irvine, 1973
20.5 x 25cm, 28pp plus printed grey wrappers.Fifteen b&w illustrations with colour overprinting. Artist’s book showing fifteen photographic images of Baldessari attempting to create three melodies and fifteen chords by imagining a musical stave in the air (the ball’s position representing the notes). VG condition. Now somewhat scarce.