Riff A 

E-----------------------------|       |---------------------------------| 
C-----------------------------|       |---------------------------------| 
G-6---2-2-2-2-----------------|       |-6-6-6-6-2-2-2-2-----------------| 
C-------------3-3-3-3-1-1-1-1-| then  |-----------------3-3-3-3-1-1-1-1-| x7 
G-6---2-2-2-2-----------------|       |-6-6-6-6-2-2-2-2-----------------| 
C-------------3-3-3-3-1-1-1-1-|       |-----------------3-3-3-3-1-1-1-1-| 
G-----------------------------|       |---------------------------------| 

Guitar two enters with a pickslide during the third repetition of ^ 
Guitar two then plays something like the following: 

E-------------------------------| 
C-------------------------------| 
G-6-6-6-6/888-------------------| 
C---------------9-9-9-9-7-7-7-7-| x4 as Guitar one's final four repeats 
G-6-6-6-6/888-------------------| 
C---------------9-9-9-9-7-7-7-7-| 
G-------------------------------| 

Riff B (those tight groupings are 12s, not 1s and 2s...) 

pinch  pm.............|             pm.............| 
E----|-----------------------------------------------------------------------| 
C----|-----------------------------------------------------------------------| 
G----|-----------------4/6-6/9-9/12-----------------/12-12-12-12-12-12-12-12-| 
C----|-2-0-1-0-2-0-1-0--------------2-0-1-0-2-0-1-0--------------------------| 
G-2~~|-2-0-1-0-2-0-1-0-4/6-6/9-9/12-2-0-1-0-2-0-1-0-/12-12-12-12-12-12-12-12-| 
C----|-2-0-1-0-2-0-1-0--------------2-0-1-0-2-0-1-0--------------------------| 
G----|-----------------------------------------------------------------------| 

                                                       tremelo pick....................|  
E-------------------------------------------------------------------|  
C-------------------------------------------------------------------| 
G-----------4/6-6/9-9/12-----------12121212121212121212121212121212-| 
C-12\\\\\\\--------------12\\\\\\\----------------------------------| 
G-12\\\\\\\-4/6-6/9-9/12-12\\\\\\\-12121212121212121212121212121212-| 
C-12\\\\\\\--------------12\\\\\\\----------------------------------| 
G-------------------------------------------------------------------| 

Riff C (play four times) 

E------------------------------| 
C------------------------------| 
G------------------------------| 
C-3332-2-3332-2-3332-2-1111111-| 
G-3332-2-3332-2-3332-2-1111111-| 
C-3332-2-3332-2-3332-2-1111111-| 
G------------------------------| 

Riff D 

E----------------------------------------------------------| 
C----------------------------------------------------------| 
G----3-4----3-4----3-4----3-4----4-3-----4-3----4-3----4-3-| 
C-444----444----444----444----111-----111---111-----111----| 
G----3-4----3-4----3-4----3-4----4-3-----4-3----4-3----4-3-| 
C-444----444----444----444----111-----111---111-----111----| 
G----------------------------------------------------------| 

E---------------------------------------------------------------| 
C---------------------------------------------------------------| 
G----3-4----3-4----3-4----3-4----4-3-----4-3----4-3-------------| 
C-444----444----444----444----111-----111---111-----2-0-1-0-1-0-| 
G----3-4----3-4----3-4----3-4----4-3-----4-3----4-3-2-0-1-0-1-0-| 
C-444----444----444----444----111-----111---111-----2-0-1-0-1-0-| 
G---------------------------------------------------------------| 

Riff E 

E---------------------------------------------| 
C---------------------------------------------| 
G---------------------------------------------| 
C-3---3-3---3-6---6-6-6-3---3-3---3-6---6-6-5-| 
G-2---3-2---3-6---6-5-6-2---3-2---3-6---6-6-5-| 
C-3---3-3---3-6---6-6-6-3---3-3---3-6---6-6-5-| 
G---------------------------------------------| 

E-------------------------------------| 
C-------------------------------------| 
G-------------------------------------| 
C-3---3-3---3-6---6-6-----3---3-3---3-| 
G-2---3-2---3-6---6-6-5-3-2---3-2---3-| 
C-3---3-3---3-6---6-6-----3---3-3---3-| 
G-------------------------------------| 

Riff F (play three times) 

E-----------------------------| 
C-----------------------------| 
G-----------------------------| 
C-----------------7---7-7---7-| 
G-----------------7---7-7---7-| 
C-33333333333333337---7-7---7-| 
G-----------------------------| 

Riff G 

E-------------------------------------------------| 
C-------------------------------------------------| 
G-------------------------------------------------| 
C-6\-2/-6\-2/-6\-2/-6\-2/-6\-2/-6\-2/-6\-2/-6\-2/-| 
G-------------------------------------------------| 
C-6\-2/-6\-2/-6\-2/-6\-2/-2\-2/-6\-2/-6\-2/-6\-2/-| 
G-------------------------------------------------| 

E-----------------------------------------------| 
C-----------------------------------------------| 
G-----------------------------------------------| 
C-6\-2/-6\-2/-6\-2/-6\-2/-6\-2/-6\-2/-----------| 
G-----------------------------------------------| 
C-6\-2/-6\-2/-6\-2/-6\-2/-6\-2/-6\-2/-18\\\\\\\-| 
G-----------------------------------------------| 

Riff H 

E-----------------------------------------------------------------------------| 
C-----------------------------------------------------------------------------| 
G-3-3-3-3-3-3-3-3-3-3/6-6-6-6-6-6-6-6-6-6-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-| 
C-3-3-3-3-3-3-3-3-3-3/6-6-6-6-6-6-6-6-6-6-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-| 
G-3-3-3-3-3-3-3-3-3-3/6-6-6-6-6-6-6-6-6-6-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-| 
C-3-3-3-3-3-3-3-3-3-3/6-6-6-6-6-6-6-6-6-6-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-| 
G-----------------------------------------------------------------------------| 

Repeat first half then: 

E--------------------------------------| 
C--------------------------------------| 
G-/14-14-14-14-14-14-13-13-13-13-13-13-| 
C--------------------------------------| 
G-/14-14-14-14-14-14-13-13-13-13-13-13-| 
C--------------------------------------| 
G--------------------------------------| 

E-----------------------------------------------------------------------------| 
C-----------------------------------------------------------------------------| 
G-3-3-3-3-3-3-3-3-3-3/6-6-6-6-6-6-6-6-6-6-2-2-2-2-2-2-6\2-2-2-2-2-6\2-2-2-2-2-| 
C-3-3-3-3-3-3-3-3-3-3/6-6-6-6-6-6-6-6-6-6-2-2-2-2-2-2-6\2-2-2-2-2-6\2-2-2-2-2-| 
G-3-3-3-3-3-3-3-3-3-3/6-6-6-6-6-6-6-6-6-6-2-2-2-2-2-2-6\2-2-2-2-2-6\2-2-2-2-2-| 
C-3-3-3-3-3-3-3-3-3-3/6-6-6-6-6-6-6-6-6-6-2-2-2-2-2-2-6\2-2-2-2-2-6\2-2-2-2-2-| 
G-----------------------------------------------------------------------------| 
                                          pm.......| 
E-------------------------------------------------------------| 
C-----------------------------------------------------0-------| 
G-3-3-3-3-3-3-3-3-3-3/6-6-6-6-6-6-6-6-6-6-2---2---2---0-------| 
C-3-3-3-3-3-3-3-3-3-3/6-6-6-6-6-6-6-6-6-6-2---2---2---0-------| 
G-3-3-3-3-3-3-3-3-3-3/6-6-6-6-6-6-6-6-6-6-2---2---2---0-------| 
C-3-3-3-3-3-3-3-3-3-3/6-6-6-6-6-6-6-6-6-6-2---2---2---0-------| 
G-------------------------------------------------------------|