Matthieu Hartley (born 4 February 1960) is an English musician, best known as the keyboardist for The Cure from 1979-1980. Hartley was born in Smallfield, England, near Crawley, and was a childhood friend of future bandmate Simon Gallup. Hartley and Gallup were both members of the punk bands Lockjaw and the Magazine Spies in the late 1970s. These bands often played alongside early versions of the Cure. Near the end of 1979,