Tunning-down half a step and drop the low string
D#
A#
F#
C#
G#
C#

Legend-   PM.-palm mute
          |-rest

Riff 1
D#-----------------------------------------------------|
A#---------------------------------------------|
F#-----------------------------------------------------|
C#-----------------------------------------------------|
G#--0--0-0--0-0--0-0--0--------------------------------|
C#--0--0-3--3-2--2-1--1--------------------------------|

Riff 2
D#-----------------------------------------------------|
A#---------------------------------------------|
F#-----------------------------------------------------|
C#---------------------|-------------------------------|
G#--0--0-0--0-0--0-0-2-|-2-----------------------------|
C#--0--0-3--3-2--2-0-2-|-2-----------------------------|

Riff 3 -play this riff with slow alternate picking.
D#-----------------------------------------------------|
A#---------------------------------------------|
F#-----------------------------------------------------|
C#-----------------------------------------------------|
G#-----------------------------------------------------|
C#--0-0-0--0--0--0-0-0--0-0-0--------------------------|
PM. . . .  .  .  . . .  . . .

Riff 4
D#-----------------------------------------------------|
A#-----------------------------------------------------|
F#-----------------------------------------------------|
C#-----------------------------------------------------|
G#------------0-2-4-3-5--------------------------------|
C#--0-0-0--0--0-2-4-3-5--------------------------------|
PM. . . .  .

Riff 5 -bridge
D#---------------------]-------------------------------|
A#-----play-2-times----]-------------------------------|
F#---------------------]-------------------------------|
C#---------------------]-------------------|-----------|
G#--0-1-0--2-1-2-3-2-1----0-1-0--2-1-2-3-2-|-----------|
C#-----------------------------------------|-----------|
PM. . . .  . . . . . .    . . .  . . . .

Riff 6 -2nd bridge, solo, & end riff
D#-----------------------------------------------------|
A#---------------------------------------------|
F#-----------------------------------------------------|
C#-----------------------------------------------------|
G#--3-4-3--5-4-5-6-5-4---------------------------------|
C#--3-4-3--5-4-5-6-5-4---------------------------------|

Riff 7
D#-----------------------------------------------------|
A#-----------------------------------------------------|
F#-----------------------------------------------------|
C#-----------------------------------------------------|
G#------0--0--0------0-----0-----0--0--0------0-----0--|
C#--0-1-0--0--0--0-1-0-0-1-0-0-1-0--0--0--0-1-0-0-1-0--|
PM. . . .  .  .  . . . . . . . . .  .  .  . . . . . .

Play riffs in this order-

riff1 x3
riff2 x5
riff3 x5
riff4 x1
riff3 x3
riff4 x1
riff3 x3
riff4 x1
riff3 x3
riff4 x1
riff1 x1
riff2 x1
riff1 x1
riff2 x1
riff3 x1
riff4 x1
riff3 x1
riff4 x1
riff3 x1
riff4 x1
riff3 x1
riff4 x1
riff1 x1
riff2 x1
riff1 x1
riff2 x1
riff5 x1
riff6 x16
riff7 x1
riff1 x1
riff2 x1
riff1 x1
riff2 x1
riff1 x1
riff2 x1
riff1 x1
riff2 x1
riff1 x1
riff2 x1
riff1 x1
riff2 x1(do not play the very last chord in this riff)
riff6 x8