Rollin' and Tumblin'
     M. Morganfield

    Well I woke up this morning
    My tears kept rolling on
    Well I come here baby
    Sit down next to me
    Well I come here baby
    Sit down next to me
    I wanna tell you
    About the way they treated me

    Well I'm rolling and tumble
    I'll be a whole lot more
    Well I'm rolling and tumble
    I'll be a whole lot more
    Well I woke up this morning
    All I had was here

    Well I hrrmmmm ...
    Hrrmmmm ....
    Well I hrrmmmm ...
    Hrrmmmm ....
    Huh huh etc.

    (Guitar plucking to the end)

The easy way to play the main riff is to alternate between G played in E form on the 3rd fret
(355433), and the same thing without the E form -- 333333. 
(Technically, a Bb6/G&C, I guess.)

  The riff goes something like:
  G   G   Bb      G G G   Bb  G
  1   2   3   4   1   2   3   4

ROLLIN' & TUMBLIN'  by McKinley Morganfield

Well, I woke up this morning; I best get rolling on.
Well, come here baby, sit down on daddy's knee.
Well, come here baby, sit down on daddy's knee.
I want to tell you about the way they treated me.
Well, I rolled and I tumbled, cried the whole night long.
Well, I rolled and I tumbled, cried the whole night long.
When I woke up this morning, all I had was gone.