All corrections are welcome.

  " - tremolo
 / - slide down
 \ - slide up
 . - palm mute
 ~ - long sound
 x - rest
 p - pull off
 h - hammer on
 tr - trill
 () - ghost note, sustained note
 <> - let ring

===================================================

Riff 1a, 1b (1a - with light palm muting, 1b - without)
|-----------------------------------------------------------------|
|-----------------------------------------------------------------|
|-----------------------------------------------------------------|
|-3-3-3-6-2-2-2-2-------3-2-2-2-2---------------------------------|
|-1-1-1-4-0-0-0-0-4-4-4-1-0-0-0-0-3-3-3-3-4-4-4-4-2-2-2-4-3-3-3-3-|
|-----------------2-2-2-----------1-1-1-1-2-2-2-2-0-0-0-2-1-1-1-1-|



Riff 2 - VERY inaudible riff, so, this is only my opinion
|---------------------------------------------------------------------|
|---------------------------------------------------------------------|
|----------------------------------------------------------------a.h.-|
|------------2---1------------2---1------------2---1------------2---1-|
|----3---2------------3---2------------3---2------------3---2---------|
|-00-1-0-0-0---0---00-1-0-0-0---0---00-1-0-0-0---0---00-1-0-0-0---0---|
  ..   .   .   .   ..   .   .   .   ..   .   .   .   ..   .   .   .


Riff 3
|-------------------------|
|-------------------------|
|-10-10-10/11-10-10-10/11-|
|-------------------------|
|--8--8--8/-9--8--8--8/-9-|
|-------------------------|



Riff 4
|------------------------------------------------------|
|------------------------------------------------------|
|------------------------------------------------------|
|------------------------------------------------------|
|-4-4-4-2-4x----4-3-2-4x----4-4-4-2-4x---5-5-5-5-5-5-5-|
|-2-2-2-0-2x----2-1-0-2x----2-2-2-0-2x---3-3-3-3-3-3-3-|



Riff 5
|-----------------------------------------------------------------|
|-----------------------------------------------------------------|
|-----------------------------------------------------------------|
|-----------------------------------------------------------------|
|-4-4-4-2-4---------4-3-2-4-------4-4-4-2-4---------5-5-5-5-5-5-5-|
|-2-2-2-0-2-0-0-0-0-2-1-0-2-0-0-0-2-2-2-0-2-0-0-0-0-3-3-3-3-3-3-3-|
            . . . .         . . .           . . . .