James Clements began DJing on pirate radio while still at school, after growing up in different parts of England. He wrote his first productions between 1997 and 1999 and has released music as ASC since 1999. Early tracks found homes on Nu Directions and Good Looking Records; in 2000, Clements set up Covert Operations. The label released music through 2009, including 30 vinyl releases and eight CDs. Clements first produced as ASC with Michael Dunne, releasing music as ASC & Future Link before moving forward as a solo artist.
In 2010, Clements released the album Nothing Is Certain on NonPlus+. The album became an important release in the development of autonomic, a sound ASC helped develop with dBridge and Instra:mental. The three artists were key figures in the movement, and Clements also collaborated with both as part of its circle. After Nothing Is Certain, Clements launched Auxiliary, a label he has run since 2010. His label work has extended to Spatial, which he has run since 2022, and to Veil and Diode, launched in 2012 and 2013 respectively.
ASC’s music spans drum and bass, jungle, ambient and experimental electronic music. Clements has cited Motown, techno and UK hardcore among his influences, while his work also reaches into film: at the request of Liquid Cinema head Jeff Rona, he created the Music For Pictures project. Clements has released music on NonPlus+ and Samurai Music, including the 2024 single S100. His 2025 album Vanishing Point appeared on Auxiliary, and that year he also released the single Violet Dusk | Blossom Memory with zakè on Past Inside the Present.
In 2026, Clements released the album Microliths and Momentary Drifts with Ossa and zakè on Zakè Drone Recordings. The same year brought the single Antiquated Thoughts EP on ARTS. Alongside his production work, Clements remains active as a DJ and label operator, with Auxiliary and Spatial among the labels he runs. His musical range spans club-focused drum and bass and jungle as well as ambient and experimental electronic work.
