Take a look at this handbill for the Conqueroo & Rachel's Children, with Lightshow by Jomo Disaster, at the Doris Miller Auditorium in Austin. The date is 5/6/67.
This was when the psychedelic scene was really kicking into full gear in Austin, it was actually the beginning of the end. Promoters were looking to cash in with shows at larger venues and the Doris Miller Auditorium was a likely choice.
Things were beginning to take off and the police were really beginning their CRACKDOWN. This caused many from the scene to flee Austin for other places.