Guest:David, Here's how I play the Lily lick. I hope you can understand this:

_____________0-_0-__0-________________________________________
___________1-_____3-__1-_1-_0-_1-______________________________
________0/2-____________________2-_2-_0-_2-____________________
____0/2-__________________________________2-_3-_2_0_______0/2-_
__0-_______________________________________________3_2_0-_____
_____________________________________________________________


Work from an Am chord.
Play all individual notes with the thumb.
0/2 means to hammer from an open string.
Any number followed by a - has a UDU strum with the fingers (Maybelle used her index).
You can get a very similar sound using a flat pick.
Either Joan is capoed at the first fret or maybe I'm tuned a fret low.