Soft Heap went on tour in 1978, but with Pyle busy with National Health, Dave Sheen replaced him and the name was changed to Soft Head.
Rogue Element, a live album from the Soft Head tour, was released in 1978, but the original Soft Heap line-up reconvened in October 1978 to record Soft Heap (released in 1979). John Greaves (also from National Health) replaced Hugh Hopper in 1979-80, while 1981 saw a new line-up of John Greaves, Elton Dean, Pip Pyle and Mark Hewins on guitar following Alan Gowen's death that year. 
The new line-up toured intermittently through the 1980s, occasionally including guests such as Fred Frith & Phil Minton.
Released only in 1996, A Veritable Centaur is a live album largely taken from a 1982 French show, with one track from a 1983 BBC Radio 3 performance while Al Dente is a 2008 archival release of a 1978 show.
The three other founding members (Hopper, Dean and Pyle) all died in the 2000s.