The band's existence can be basically summarized in 6 periods :
proto-Mother Gong #1 -1978 - band assembled to promote the Mother album
Members : Gilli Smyth, Jerry Hart (dr), George Bishop (sax), Paul Sanchez (bass), François Bessac (gtr), Jean-Paul Vivini (synth), Janno (perc), Patrick Meadows (keys), Ax Genrich (gtr)...
This proto-Mother Gong band consisting of French and UK musicians toured in Spain and UK in the second half of 1978.
Mother Gong #2 -1978-79 in USA.
Gilli Smyth & Harry Williamson with musicians: George Bishop, Bill Laswell, Michael Beinhorn, Fred Maher, Bill Bacon, Chris Cutler, Cliff Cultreri, Mark Kramer...
Participated to the first New-York Manifestival in Oct.1978 then returned in Spring 1979 for a US tour promoted by Giorgio Gomelski. Although billed as "Mother Gong", this was really Gilli and Harry backed by the core members of New York Gong (soon to become Material). Period documented on Live In Usa 79 and on several bootlegs.
Mother Gong #3 -1979-80
Members : Gilli Smyth, Harry Williamson, Didier Malherbe, Trevor Darks, Mo Vicagage, Ermano Ghisio Erba, Eduardo Nibla...
Recorded the album Fairy Tales, and played at Glastonbury festival.
Mother Gong #4 - 1981-83
Members : Gilli Smyth, Harry Williamson, Didier Malherbe, Yan Emeric, Dane Kronenberg, Guy Evans
This is the Robot Woman Trilogy period, with a better established line-up of musicians around Gilli and Harry. Played festivals in Norway and UK.
Mother Gong #5 - 1986-1991 in Australia and UK
Members : Gilli Smyth, Harry Williamson, Robert Calvert, Conrad Henderson, Robert George
This was the longest, most stable, and most prolific period for Mother Gong. They developped a "spontaneous composition" method, resulting in a unique and successful blend of jazz, rock and ambient music. This period ended when Harry Williamson and Gilly Smyth parted ways.
Mother Gong #6 - 2005-2006
Members : Gilli Smyth, Didier Malherbe, Gwyo Ze Pix, Orlando Allen, Tim Hall, Graham Clark
Last resurrection of the band at the occasion of Gong's conventions in 2005 and 2006. They did also a few other gigs in UK and Norway.