From: "John McCormick" 
To: 

]The entire song is played in 4/4 time and is to beplayed very fast,  so it
isn't as simple as it looks.  Of course it isn't, this is Phil Lesh you're
dealing with after all.]

All notes denote the root note*, where you play the following basic blues
riff:

				|----|----|----|----|
				|----|----|----|----|
				|-X-|-X-|----|-X-|         *: Play all these as high notes
				|----|-X-|----|----|
				 root^ note
This first line isnt played as fast:
			|--C--|--C--|--C--|--C--|
Now speed up		|--F--|--F--|--C--|--C--|
			|--G--|--F--|--F--|--F--|
			|--C--|--C--|--C--|--C--|   {REPEAT}