Riff A:
e|-----------------------------------------
B|-----------------------------------------
G|-----------------------------------------
D|---3-2---2---------3-2---2---------------
A|-0-----3---3-2---0-----3---3-2-----------
E|-----------------------------------------
Riff B:
e|-----------------------------------------
B|-----------------------------------------
G|---3-2---2---------3-2---2---------------
D|-0-----3---3-2---0-----3---3-2-----------
A|-----------------------------------------
E|-----------------------------------------
The Guitar bit is: Riff A (x2) Riff B (x1) Riff A (x1)
Then it goes into power chords(A-Shape):
A F E C B
and at one point after doing the above does:
A C D C B
Note always the C and B at the end are palm muted.
PLAY TOO ..