Circadian Rhythms has been played on NTS in shows including Work Out w/ Sofie K , featured first on 30 January 2020. Songs played include Sleeping Soul and Nocturnal Fly.

Circadian Rhythms is a name of at least two acts:

1) Future jazz outfit Circadian Rhythms was the brainchild of Charles Bullen, who used to be one-third of highly influential early 80s band This Heat.

Fueled by Charles Bullen's expertise in unusual production techniques and by his love for African music and reggae, the music of Circadian Rhythms is an open and intricate mixture of polyrhythms, keyboards and electronics, spiced up with live instruments such as guitars, percussion and horns (saxes, flutes and trombone). At times it might be described as a post-techno, post-d'n'b version of early-70's spaced-out Latin/African-tinged jazz excursions (Pharoah Sanders, Alice Coltrane, Strata East Records), but most of the time it simply sounds like nothing else…

2) Circadian Rhythms is Craig Dillon. Born in Derry, Ireland and is currently living in the West Yorkshire area, England. He produces his own blend of electronica drawing aspects from many other electronic genres.