Main Riff
G ------------------------------------------------------------------
D -----------------3-3-2-2-0-0-2-2---------------------------------- x4
A -5-5-3-5--5-3-5-------------------1-1-0-1--1-0-1--------------3-3-
E --------------------------------------------------3-3-5-5-6-6-----

First Change
G ------------------------------------------------------------------
D --------------------------------2-2-2-2---------------------------
A ------------5-5-5-3-5--1-1-1-1-----------0-0-0-0--7-5-4-5-4-2-0-2-
E -5-5-5-3-5--------------------------------------------------------

Then Main Riff x4

Second Change
G --------------------------------------------------------------
D --------------------------------2-2-2-2-----------------------
A ------------5-5-5-3-5--1-1-1-1-----------0-0-0-0--3-0-5-3-2-0-
E -5-5-5-3-5----------------------------------------------------

G -----------------------------------------------------------------------
D -------------------------------3-3-2-2-0-0-----------------------------
A -------------------------------------------3-3-------------------------
E -3-3-3-0-3--5-5-5-3-5--1--1-1-------------------0--0-0-5-0--6--6-6-8-6-

G ------------------------------------------------------------------2-2-
D ------------------------------------------------------2-2-3-3-5-5-----
A ----------------------------------------------------------------------
E -5-5-5-5-5--6-6-8-8-10-10--3-3-3-3--1-1-1-1--0-0-0-0------------------

G ------------------
D ------------------
A -1-1-1--0-0-1-1-3-
E ------------------

Then Main Riff x4

Third Change
G --------------------------------------------------------------
D --------------------------------2-2-2-2-----------------------
A ------------5-5-5-3-5--1-1-1-1-----------0-0-0-0--3-0-5-3-2-0-
E -5-5-5-3-5----------------------------------------------------

G -----------------------------------------------------------------------
D -------------------------------3-3-2-2-0-0-----------------------------
A -------------------------------------------3-3-------------------------
E -3-3-3-0-3--5-5-5-3-5--1--1-1-------------------0--0-0-5-0--6--6-6-8-6-

G ------------------------------------------------------2-2-
D -----------------------------------------2-2-3-3-5-5------
A ----------------------------------------------------------
E -5-5-5-5-5--6-8-10-3--1--1-1-1--0-0-0-0-------------------

G ----------------------
D ----------------------
A -1--1-1-3-1--0--0-1-3-
E ----------------------

Last Change
G ---------------------------------
D -----------------3-3-2-2-0-0-2-2- x8
A -5-5-3-5--5-3-5------------------
E ---------------------------------

G ------------------------------------------------------------------------
D -------------------------------------2-2-0-----------7-7--5-5--3-3--2-2-
A -1-1-0-1--1-0-1-----------------3-3--------3--3-0-3---------------------
E -----------------3-3--5-5--6-6------------------------------------------

Outro Main Riff x4