Disturbances of Circadian Rhythm

Derek Charke

  • Year of composition: 2009
  • Duration: 11:04
  • Instrumentation: flute and system
  • Commission: Chenoa Anderson with support from the Arts Nova Scotia


The radio sputters, woken but not fully. Half asleep there are sounds — images — but then there is a return to a restless half-consciousness. Moments of lucidity are countered by perturbative utterances; an analogy, perhaps, to those half-awake, half-asleep moments when we dream (REM) and those of deep sleep. The flute is doubled, harmonized, sent though filters, a vocoder, reverb and other effects; it is sampled live and looped. Pre-recorded files include radio stations, static, hiss, water flushing, voices, low drones, a double bass and an accordion.

Disturbances of Circadian Rhythm was commissioned for Chenoa Anderson with funding provided by Arts Nova Scotia, and was premiered on January 31, 2009 at Acadia New Music Festival: Shattering the Silence.


  • January 31, 2009, Chenoa Anderson, flute • Acadia New Music Festival — Shattering the Silence, University Hall — Acadia University, Wolfville (Nova Scotia, Canada)