Canon S&H is a four voice canon for sine wave oscillators. Using a sample and hold system, certain phase thresholds are set along a base sawtooth wave. Another control sawtooth wave is fed into the sample and hold unit and controls when and how long the value of the base sawtooth wave is sampled. Each sine wave’s event structure is based upon one of the four distinct thresholds. The control sawtooth wave is distorted to modify the tempo and pitches of the group of oscillators over time. Various functions control each of the synthesis parameters. The oscillators in Canon S&H are tuned with a ratio of 1 : 1.68.