Quote Originally Posted by Tomorrow Never Knows
I agree, two really good examples of the jazz-pych link are free-jazz musician Sun Ra, and The Byrds lead guitarist, and co-founder, Roger McGuinn, who was heavily inspired by Coltraine. Check out The Byrds breakthrough acid rock song Eight Miles Eight from 1966. McGuinnâ??s soloing sounds like a saxophone, while he actually played it on a slightly distorted 12 string.
the Jazz psych-link goes way futher back to the early 1900s
the begginning of Jazz is psychedelic
I cant think of any particular band names but chck out for example A&E's documentary "History of Marijuana" with Woddy Harelson as the commentator, and they show a few jazz bands from 1920s getting groovy, smoking marijuana, and making some psychedelic music

but u nailed it where the Psychedelic-ROCK link beggins - as i said earlier sorta when they started integrating jazz into rock