Not to be confused with the Swedish band Thundermother, who are a band of 5 girls who played hard rock in a style similar to ACDC, no this Thundermother was a studio band from the UK who supposedly recorded their one and only album in a weekend.  Not sure if this is true, as very little info is available about them.  Still trying to figure out what the 'Coke Version' of a song is!  What is known is that their music was a mix of heavy acid psych blues rock, and that this album "collects Their Contributions to Astral Navigations, Gagalactyca, Loose Routes I and II. "David J. Smith (formerly of David John and the Mood) co-produced and sang on some tracks of an" ad hoc "group (ie They Were the studio creation) called Thundermother During 1969. This one band shared with lp Light years Away called "Astral Navigations" (Holyground 1971). Thundermother's Contribution was recorded over one weekend. Acid guitars, Hard Acid rock, heavy Acid Psych, Heavy Acid Prog, Acid Blues !! Progressive/hard rock featuring a lot of fuzzed guitar!!"  Robscurities has recently discovered the original artwork for the album No Red Rowan which was rejected by the band's label.