The new South African sound of gqom is an exciting new genre in club/electronic music, with a raw, minimalist and heavy sound, fitting alongside the UK bass continuum and Chicago’s footwork scene. DJ Lag is the self-proclaimed gqom king, one of its leading producers and DJs, while Italian Nan Kolè is a founder of the Gqom Oh! label and the European ambassador of this sound. In discussion with Ryan Keeling.