"Comlex" was a second single for Gary Numan which was released in 1979 when Numan also scored his biggest hit to date with the song "Cars". Unlike the most of Gary Numan songs "Complex" featured more conventional acoustic drums, acoustic piano, electric bass guitar, whereas the distinctive lead parts were performed on violin, viola and heavily flanged and reverberated analogue monosynth. The song was released on Beggars Banquet and reached no 6 in the UK charts.