The anti-opera, "I Could Not Sing," revisits an early video work, "see also 0502.2156" (May 2, 2003), created mostly in Mathematica, and assembled from frames and sound output by programming in that system into a fixed length video.
A simulated stick of compressed charcoal is pushed across simulated textured paper by invisible forces — waves of pressure, twist, and drag the tool around, depositing pigment on the paper as charcoal would if moved by a hand hand.