In a similar spirit Leon Theremin, famous as the inventor and namesake of one of the first electronic instruments, undertook pioneering work on live concert visuals as part of a series of experiments aimed at improving viewers’ sensory perception thresholds. In 1923 he created a gesture-controlled multicolored light called the Illumovox, later teaming up with Albert Einstein in what we can only hope was the first ever VJ duo, showing test subjects geometrical figures accompanied by music.
Colin Mcswiggen in Red Noise for n+1, reviewing Sound in Z, a book covering experimental music in the early Soviet Union. (via blech)