British band The Mindbenders headline this concert. Wilson's design, a visual pun on the band's name, hints at the music's effect on the cerebellum.
The 1st printing poster has a chartreuse image and measures 14" x 20". This poster bears union logo 72 in the lower right corner and "Wes Wilson '66" runs vertically up the lower right margin. 1,500 original posters were printed before the concert.
The post-concert 2nd printing of the poster (see BG016-2) has no union logo and no Wes Wilson credit. The image is yellow, and it measures 13 15/16" x 19 3/4".
The 3rd printing also lacks the union logo, but "Wess (sic) Wilson 16" appears at the bottom of the left margin. The bottom strip and design are chartreuse, and this post-concert printing measures 13 15/16" x 19 3/4".
When the Avalon Ballroom and Bill Graham's Fillmore Auditorium began to hold weekly dance concerts, Wilson was called upon to design the posters. He created psychedelic posters from February 1966 to May 1967, when disputes over money severed his connection with Graham. Wilson pioneered the psychedelic rock poster. Intended for a particular audience, "one that was tuned in to the psychedelic experience," his art, and especially the exaggerated freehand lettering, emerged from Wilson's own involvement with that experience and the psychedelic art of light shows.