riff 1:                           riff 2:

E|-------------------------------| |-------------------
B|-------------------------------| |-------------------
G|-------------------------------| |-------------------
D|-------------------------------| |-------------------
A|-----8-7------8-7--ah--ah--ah--| |-----8-7------8-7--
E|-5~-------5~-------8---7---6---| |-5~-------5~-------

E|------------| 
B|------------| 
G|------------| 
D|------------| 
A|7---6---5---| 
E|8---7---6---| 

Notes:  During the riff, harmonics are picked at random
 and at various places.          During the chorus, a 
second guitar plays a heavily palm-muted A chord
        (-5-7-7-x-x-x-) while the bass plays an A pedal
 tone.  When the riff is
        noted without a number, the guitars are playing
 various endings, all of
        which follow the basic figures transcribed 
above.

-songflow-
 riff 1 (2x)
 riff 2 (2x)
 A   D# D (6x)
 D
 A   D# D (2x)
 D
 riff 1  riff 2 (2x)
 riff 2
 A
 A   D# D (3x)
 A   D# D (4x)
 D
 A   D# D (2x)
 D
 riff 1 (2x)
 riff 2 (2x)
 riff   (8x)
 riff 1  riff 2
 A