ff 1 (Main Riff)

 e:---------------------------------------------------| 
 b:---------------------------------------------------| 
 g:---------------------------------------------------| 
 d:---------4--------4-2-0----------------------------| 
 a:-2-2-2-2----1-2-2-------------------4--------4---0-| 
 e:---------------------------3-3-3-3-----2-3-3-------| 

Riff 2 (Before Bass Bridge)

 e:-----------------------------------------------------| 
 b:-----------------------------------------------------| 
 g:-----------------------------------------------------| 
 d:---------4--------4-2-0------------------------------| 
 a:-2-2-2-2----1-2-2-------------------5--------4-4-0-0-| 
 e:---------------------------3-3-3-3-----2-3-3---------| 

Riff 3 (After Bass Bridge)

 e:----------------------------------------| 
 b:----------------------------------------| 
 g:----------------------------------------| 
 d:---------4p2-0--------------------------| 
 a:-2-2-2-2------------------4---------4-0-| 
 e:------------------3-3-3-3-----3-3-3-----| 

Riff 4 (End Riff)

 e:-----------------------------------------------| 
 b:-----------------------------------------------| 
 g:-----------------------------------------------| 
 d:---------4--------4-2-0------------------------| 
 a:-2-2-2-2-----2-2------------------4------4---0-| 
 e:-------------------------3-3-3-3-----3-3-------| 

( last 0 compliments of cyrac (the guitarist)  [email protected]  )

Structure

Riff 1 - 7 times
Riff 2
Riff 3
Riff 4 - as many times as needed