As a teenager, Parkes listened to electro, techno, and hip-hop as well as the more free-form side of jazz and fusion. Thanks to a sampler bought with a £2000 loan from the Trust of the Prince of Wales, he began producing tracks and first appeared on Paul Solomon's Certificate 18 Records with singles as Studio Pressure. He also recorded for Basement (as Sentinel) and Street Beats (the Truper) before initiating a series of 12" singles for his own Photek Records, which gave him credentials and led to releases on Goldie's Metalheadz label and L.T.J. Bukem's Good Looking, as well as a remix of the Therapy? single "Loose."
After Parkes had released more than 80 tracks of drum'n'bass on half-a-dozen labels, he was approached by Virgin and signed to a five-album deal with the label's Science imprint (provided he was allowed to continue recording for other independent labels as well). Parkes' first release on Science was the Hidden Camera EP, which appeared in May 1996. The second Science single Ni-Ten-Ichi-Ryu displayed an increasing interest in applying the lessons of martial arts to his programming (the title is Japanese for "two swords, one technique"). Virgin compiled the latter two releases on 1997's Risc vs. Reward, then released the debut Photek album Modus Operandi in September 1997. Much-hyped though little-praised, the album was followed by 1998's Form & Function, a compilation including several original Photek Records tracks plus remixes and new tracks. During the next two years, Parkes focused on his new Photek Productions label, and finally released a second LP, Solaris, in 2000. A couple exceptions aside, the album departed from drum'n'bass and was deeply indebted to early Chicago house. Heavyweight house vocalist Robert Owens was featured on two tracks.
Throughout the next decade, Parkes was sporadically active, at least when it came to 12" releases. He became involved with composing music for films and assisted Trent Reznor with some programming on Nine Inch Nails' 2005 album With Teeth. Some of his 2000-2007 output was compiled for Form & Function, Vol. 2 (Sanctuary, 2007). Across 2011 and 2012, he was prolific once more, with several singles and EPs for Photek Productions, a collaboration with dubstep producer Pinch, and an installment in the !K7 label's long-running DJ-Kicks series. Featuring several of his own tracks, Parkes' mix focused on contemporary techno, downtempo, and atmospheric dubstep, with no drum'n'bass whatsoever. ~ John Bush & Andy Kellman, Rovi