Tune down half step, D#, G#, C#, F#, A#, D#

Listen to song for strumming

Riff A
E-----------------------------------|
B-----------------------------------|
G-----------4-4-4-4-----------------|
D---4-4-4-4-4-4-4-4-6-6-6-6-7-7-7-7-|
A---4-4-4-4-2-2-2-2-6-6-6-6-7-7-7-7-|
E---2-2-2-2---------4-4-4-4-5-5-5-5-|

Riff B
E-------|
B-------|
G-------|
D---4---|
A---4---|
E---2---|

Riff C
E-----------------------------------|
B-----------------------------------|
G-----------4-4-4-4-6-6-6-6---6---6-|
D---4-4-4-4-4-4-4-4-6-6-6-6---6---6-|
A---4-4-4-4-2-2-2-2-4-4-4-4---4---4-|
E---2-2-2-2-------------------------|

Riff D
E---------------------|
B---------------------|
G---4-4-4-4-4-4-4-4-6-|
D---4-4-4-4-4-4-4-4-6-|
A---2-2-2-2-2-2-2-2-4-|
E---------------------|

Riff E
E-----------------------------------|
B-----------------------------------|
G---4-4-4-4-4-4-4-4-6-6-6-6---6---6-|
D---4-4-4-4-4-4-4-4-6-6-6-6---6---6-|
A---2-2-2-2-2-2-2-2-4-4-4-4---4---4-|
E-----------------------------------|

Riff F
E---------|
B---------|
G---6---6-|
D---6---6-|
A---4---4-|
E---------|

Ok, let's organize...


Riff A x 4
Riff B x 2
Riff A x 4
Riff C x 3
Riff D x 1
Riff A x 6
Riff B x 2
Riff C x 3
Riff D x 1
Riff A x 2
Riff C x 3
Riff E x 2
Riff D x 1
Riff F

Easy enough huh?  There is some killer solo work thrown in, but this is the basic rhythm 
melody of the song.