Founded by Mark Bell and Gez Varley when they where both studying in Leeds, LFO went on to record some of the most influential productions of early UK techno, a style often referred to as 'Sheffield bleeps' for its combination of subbass frequencies and synthetic high tones. LFO's first single 'LFO' appeared in 1990 on the newly founded Warp label, surprising everyone involved when it entered the UK pop charts at #12. The ensuing album 'Frequencies' became a huge success as well, offering a a genuinely British counterdraft to US acid house and techno. LFO took until 1996 to release their second album 'Advanced', which favoured harsher, more experimental tones over the group's formerly clinically synthetic sound aesthetics. After the albums release LFO officially disbanded, with Gez Varley going on to record under the name of G-Man and Mark Bell successfully producing high-profile acts such as Bjørk and Depeche Mode. In 2003 resurfaced as a Mark Bell solo project, releasing the electronica-inspired album 'Sheath, which nevertheless contained a big club hit, 'Freak'.