Riff 1:
E|---------------------------------------------------------------
B|---------------------------------------------------------------
G|---------------------------------------------------------------
D|-------22222-555555--------------------------------------------
A|-55555-22222-333333-55555--4--------5-------4-----------------5
E|-33333-00000--------33333--2-222222-3-33333-2-22222  x's 2 ---3
pm                            ......   .....   .....

Riff 2:         Part A                                   Part B
E|------------------------------------------------|---------------------
B|------------------------------------------------|---------------------
G|------------------------------------------------|---------------------
D|------------------------------------------------|--------777777-------
A|----5----5----4----4----7----7----6----6--------|--9--4--555555-777777
E|-00-3-00-3-00-2-00-2-00-5-00-5-00-4-00-4  x's 4-|--7--2---------555555 x's 2  Then Part A x's 4
pm..   ..   ..   ..   ..   ..   ..   ..

Riff 3:
E|---------------------
B|---------------------
G|---------------------
D|-------2-------------
A|-7--4--2--4---------7
E|-5--2--0--2 x's 4 --5

Riff 4: Pm's begin while lead is still playing, then they combine.
E|-----------------------------------------------
B|-----------------------------------------------
G|-----------------------------------------------
D|-----------------------------------------------
A|-5/4/7-5-4--------5/4/7--5555555555555555555--5
E|-----------x's 5---------3333333333333333333--3
pm                        ...................

Outro:
E|------------------------------
B|------------------------------
G|------------------------------
D|------2222-5555---------------
A|-5555-2222-3333-5555---------5
E|-3333-0000------3333 x's 8---3