Emptyset is a London/Berlin based production project formed in 2005 by James Ginzburg and Paul Purgas. The project examines the material properties of sound and its correspondence with architecture, performance and physical modes of production. Their recorded output includes the releases Borders and Skin for Thrill Jockey in 2017, Recur and Collapsed for raster-noton, Signal a commissioned performance working with ionospheric propagation and Medium an expanded live recording in Woodchester Mansion in Gloucestershire. Their latest album, ash, out October 20, 2023, marks the 50th release for Ginzburg’s Subtext Recordings and a return to the project’s origins in Bristol. Emptyset have produced installations for Spike Island, Tate Britain and the Architecture Foundation and presented live performances with CTM/Transmediale, Unsound, Ruhrtriennale, Kunsthalle Zurich and Sonic Acts amongst other notable events and venues.