Although formed in Davis, California, Kak were based in San Francisco for a good part of 1968, when they recorded their only album. Lead singer, guitarist, and primary songwriter Gary Lee Yoder and lead guitarist Dehner Patten had been in the Oxford Circle, an obscure early Northern Californian psychedelic band that had cut one garage/psych single ("Foolish Woman"/"Mind Destruction") and played some shows on the San Francisco psychedelic circuit, while bassist Joe-Dave Damrell had been on a 1965 single on Scorpio Records with Group "B".
The self-titled Kak LP was minor-league San Francisco psychedelic rock colored by a lot of influence from bigger Bay Area bands, particularly Moby Grape; the vocal harmonies and curling guitar work on tracks like 'Disbelievin'" and "Everything's Changing" in particular sounded like a more pedestrian Moby Grape. There were also more distant echoes of Quicksilver Messenger Service (in the guitar work) and the Grateful Dead (in faint traces of country-blues-rock).