Awwwwlright! final update this time. I saw them live last night and realised 
my error. The riff is now 100% perfect, so yee-ha 
 
Tuning: Drop A on a 7 string (A E A D G B e) 
 
KEY: 
pm.. = palm mute 
~    = sustain 
/    = slide up 
 
INTRO: 
e|----------------------| 
B|----------------------| 
G|----------------------| 
D|----------------------| 
A|----------------------| 
E|-2-0---0--2-0--0-2-3--| 
A|-2-0-0-0--2-0--0-2-3--| 
pm     . 
 
VERSE: bass only 
 
END OF VERSE: 
e|-17/18---------------| 
B|-------16/17~~~~~~~~-| 
G|---------------------| 
D|---------------------| 
A|---------------------| 
E|---------------------| 
A|---------------------| 
 
PRE-CHORUS: intro riff 
 
CHORUS: 
e|------------------------------| 
B|------------------------------| 
G|------------------------------| 
D|------------------------------| 
A|-0---------3-------5---1--1-1-| 
E|-0------3-------5------1--1-1-| 
A|-0---3-------5---------1--1-1-| 
 
CHORUS RIFF 2 (used once at end of chorus): 
e|-------------------| 
B|-------------------| 
G|-------------------| 
D|-------------------| 
A|-0---------3--1----| 
E|-0------3-----1----| 
A|-0---3--------1----| 
 
BRIDGE RIFF 1: 
e|--------------------| 
B|--------------------| 
G|--------------------| 
D|--------------------| 
A|--------------------| 
E|-0-1--0-1--0-1--0-1-| 
A|-0-1--0-1--0-1--0-1-| 
pm . .  . .  . .  . . 
 
BRIDGE RIFF 2: 
e|--------------------| 
B|--------------------| 
G|--------------------| 
D|--------------------| 
A|--------------------| 
E|-2/3-0--2/3-0-2/3-0-| 
A|-2/3-0--2/3-0-2/3-0-| 
 
YEAH!