Riff 1, tremolo picking,
E|-----------------------------------------------------------------|
B|-----------------------------------------------------------------|
G|-----------------------------------------------------------------|
D|---109-7-6-------------------------------------------------------|
A|-7---------8-7-5-----------5-------8-7-5---7-5-----5-------------|
E|-----------------8-7-5-4-5---8-7-5-------8-----8-7---8-7-5-5-5-5-|

Riff 2, tremolo picking, the second guitar is playing an A and F chords with
some natural harmonics, PROBABLY over the 5th fret on G string,
E|-----------------------------------------------------------------|
B|-----------------------------------------------------------------|
G|-----2-------------------------------2---------------------------|
D|---2---5-3-2-------------2---------2---5-3-2---------------------|
A|-0-----------5-3---2-3-5---5-3-2-0-----------5-3-5-5-3-2-3-3-2---|
E|-----------------1---------------------------------------------3-|

Riff 3, tremolo picking, a bitch to hear,
E|-----------------------------------------------------------------|
B|---------3-------------------------------3-----------------------|
G|---2-4-5---5-4-2---2-4-5-4-2---2---2-4-5---5-4-2---2-4-5---4-5-4-|
D|-----------------3-----------3-------------------3-------2-------|
A|-0-------------------------------0-------------------------------|
E|-----------------------------------------------------------------|

Riff 4, "normal" picking, watch for the timing, especially at "*" part
E|------------------------------|
B|-------------****************-|
G|-------------3-4---3-4--------|
D|-2-1-2-1-5-4-1-2---1-2--------|
A|------------------------3-2---|
E|----------------------------3-|

Riff 5, "normal" picking, this is Riff 4 played the last, fourth time
with different ending
E|--------------------------------|
B|-------------****************---|
G|-------------3-4---3-4------3-4-|
D|-2-1-2-1-5-4-1-2---1-2------1-2-|
A|------------------------3-2-----|
E|--------------------------------|

Riff 1 x4
Riff 2 x4
Riff 3 x2
Riff 2 x2
Riff 4 x3
Riff 5 x1