Systematics

Sometimes The Systematics were Patrick Gibson, at other times Michael Filewood and Patrick Gibson, and at yet other times Fiona Graham, Michael Filewood and Patrick Gibson. Spontaneously generated one afternoon in 1978, they played live sporadically over the course of a year and a day (or thereabouts) during 1981, and expired with a smile on their lips early the next morning of the new year. Cause of death: a song in the heart. 

For more detail see Patrick Gibson's Systematics Notes at Phil Turnbull's always excellent "Sydney Post - Punk Memoirs" [SOURCE: M SQUARED]