Nighttime outside the Straight Theater on Haight Street in San Francisco. Marquee announcing “Grateful Dead/ Sons of Champlin/ FRI and SAT Dance”. Sound guys setting up, prepping venue inside. People entering venue along with two police officers. Man standing onstage with microphone leading audience through breathing exercises. CU of woman sitting with her eyes closed in concentration. Shots of concert lighting and the lighting operators. Grateful Dead playing on stage, Bob Weir singing. Jerry Garcia (with huge sideburns) playing guitar solo.