The series of works collectively titled Redundens was begun in 2001. All the pieces take Arnold Schoenberg’s Three Pieces for Piano, Op.11 as their starting point: only the top line in Schoenberg's pieces is retained as an unaccompanied melody (or as a list of pitch classes if you’re more technically-minded.) Each set of pieces uses a different method of encoding this melody; by pitch, register, timbre, duration, dynamics, or other means.
Redundens 5a plays the sequence of pitch-classes from Redundens 1 with durations and rhythms removed, within the space of a common octave. Played on pipe organ with each note played on a single stop, which changes at random with each successive note, from a prescribed list of sixteen stops. Changes in stop may cause changes in register.