James Webb’s interdisciplinary practice examines the depths of audiovisual culture. His work often explores the materiality of sound through its contextualisation and spatialisation. All that is unknown (2016), a stereo array of two speakers playing the sound of a human heartbeat, distils the vitality and fragility of life through the isolation and amplification of a pulse. Facing one another from opposite ends of the room, the naked speaker cones create a sonic environment that traverses the threshold of audibility, with the rhythm evoking a disembodied call and response that surround bodies in the exhibition space. This project was part of Sharjah Biennial 13.