Skip to 21:40 where the real fun begins. I'm biased because this is one of my Oakland Grateful Dead Shows I attended as a kid. Which was a rock and roll symphony. During some of their musical crescendos, I remember their 341 speaker sound system causing real earthquakes in the indoor Colliseum. During some of the big climaxes, I half-expected to see a conductor on stage, leading them with his baton.