Laserium

Terry Woods Post on the "Light Organ" reminded me of something I do remember as a teenager.
It was called Laserium.
It was just about the coolest thing in the universe for a teenage dweeb like me.
I remember the hardware at the time cost like $40,000 dollars or something outrageously expensive.
It was held at the Grififth Observatory in Los Angeles.

ELP Rocked back then.