Light art in the context of "The Well-Tuned Piano"

Liquid light shows (or psychedelic light shows) are a form of light art that surfaced in the early 1960s as accompaniment to electronic music and avant-garde theatre performances. They were later adapted for performances of rock or psychedelic music.

Leading names included Bill Ham, The Joshua Light Show/Joe's Lights/Sensefex located in NY, Tony Martin (SF, NYC), Elias Romero (SF), Mike Leonard (lights for Pink Floyd) (UK), The Heavy Water Light Show, Mark Boyle's Lights/Joan Hill (UK), Marc Arno Richardson’s Diogenes Lanternworks (SF, Denver), Lymbic System (Mark Hanau) (UK), Glen McKay's Headlights, The Pig Light Show (NY), Lights by Pablo (NY), The Brotherhood of Light (SF), Little Princess 109 (SF), LSD, Ed's Amazing Liquid Light Show, Abercrombe Lights (SF), the Single Wing Turquoise Bird light show (California), Sector (Alberto Zanotti) and Anna Patti (Italy). The Incredible Liteshow was run by Gary Gand in Chicago. Gand and his wife Joan went on to pioneer electronics in the Rock n Roll industry becoming the first Moog synthesizer dealer in the US and later the first Apple computer dealer in the music industry.

Marian Zazeela (April 15, 1940 – March 28, 2024) was an American light artist, designer, calligrapher, painter, and musician based in New York City. She was a member of the 1960s experimental music collective Theatre of Eternal Music, and was known for her collaborative work with her husband, the minimalist composer La Monte Young.