1960s liquid light shows established live music-synchronized visuals before video existed

In 1960s clubs and concerts, performers used liquid slides, disco balls, and light projected through oil, water, and smoke to give audiences new sensations; these came to be known as liquid light shows. From 1965-66 in San Francisco, collectives such as The Joshua Light Show and the Brotherhood of Light accompanied Grateful Dead concerts. The article notes some of these experiments were linked to the music while most functioned as decoration — which is exactly the distinction (live sync to music vs. mere backdrop) that later defines VJing. These analog precursors established the tradition of live, music-accompanying visuals for an audience decades before video technology was available.

Examples

The Joshua Light Show projected coloured oils through glass onto screens behind the Grateful Dead — a fully analog, live-mixed visual performance accompanying live music.

Assessment

Describe how 1960s liquid light shows prefigure VJing, and use the article’s own distinction (linked to the music vs. mere decoration) to explain which liquid-light performances count as true precursors.