Julian Day (b. Bendigo) is an artist and composer living and working between Sydney, Australia and New York City, USA. Day uses sound’s materiality to reveal and sculpt unseen sociopolitical circuitries between people within civic and common spaces. He uses air as both a deeply felt and heard medium within his synthesizer and organ project An Infinity Room (AIR) and has regularly collaborated with artists Luke Jaaniste and Janet McKay. Day also works with local participants within his site-responsive performance project Super Critical Mass, in which constructed communities use dispersed sound to articulate and problematize the social flows and uses of public architectures.