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There were several large visual music production companies in the United States and all of them emerged about the same time at the beginning of the era known as "the sixties", circa 1964-1970. The Electric Collage was based in Atlanta Georgia and worked all over the southern United States.
The live show was produced by 
Steve Cheatham, an experimental filmmaker and multimedia artist and Frank Hughes
a projected media artist Most of the media was produced by Frank and Steve and evolved weekly as the show worked with different bands and venues.
The Electric Collage visual music was produced by combining movies, slides, abstract color and shapes into one "Electric Collage" of images that flowed with the music. It was described by one viewer as "a spectacular visualization of music through color and images designed to extended your musical experience."
Producing a visual music light show week after week was a full time life. The rigors of producing new content, using experimental technology and traveling made for some exciting times.
The Electric Collage shows were produced at large venues such as Piedmont Park, Atlanta Municipal Auditorium, Georgian Terrace Ballroom, Chastain Park Amphitheater, Daytona Beach Pier, both Atlanta Pop Festivals, the Texas Pop Festival and many small venues around the south east United States.
The Electric Collage imagery was several layers of media projected on top of each other. The images ranged form complex to simple and were made up of colors, shapes and real world images blended carefully using a custom control panel of dimmers and switches and liquid projectors.
Films and slides added a dimension of various images mixed in with with the moving colors and shapes. The liquids were developed after many hours of experiments and many shows of evolution. As you can see they were brilliant colors with a full spectrum of hues.
Light shows continued to prosper during the late 60's and early 70's. There are many stories about what constituted their demise. Some people though it was simply a fad and the fad died out like hippies. The visual music artists have another story.