'Who Needs Songs?' - Part 2

Today, I'll offer a continuation of my May program when I tried to answer "What would this show sound like if I played plenty of music, just no songs?"

The Grateful Dead are synonymous with extended improvisational jamming.  So I'm playing nothing but prime examples of this. And as an added twist, I've chosen excerpts in such a way that it will very difficult for the listener to determine what song the jam is in, came out of or is going into. Or so I think. Here's Part 3 and the grand finale.