After some cool whispering/mumbling by Trey in the intro section, the jam starts off with a strong, Page B-3 solo, which turns into a little jam of its own, with solid support from the others.

Page cranks it up into the usual high energy frenzy, leading to a smooth handoff to Trey. From there, we get a reminder of why he earned the nickname "Machine Gun" as an apt prefix to Trey. The play towards the end is locked in, with all four bandmates in sync as the froth begins to boil. Great early version.