A Gallery of Iterated Correspondences. - Shaun Bullett; Christopher Penrose (Exp. Math., 1994)

Extending Musical Mixing: Adaptive Composite Signal Processing. - Christopher Penrose (ICMC, 1999)

FFTease: a collection of spectral signal processors for Max/MSP. - Christopher Penrose; Eric D. Lyon (ICMC, 2000)

Frequency Shaping of Audio Signals. - Christopher Penrose (ICMC, 2001)