It Ain't Like That:
Riff 1:
-0---------|
-0---------|
-1---------| x8
-2---------|
-2---------|
-0---3/4\3-|

Riff 2:
-----------------|
-----------------|
-----------------| x8
-----------------|
-2-2-3-3-3-5-3-2-|
-0-0-1-1-1-3-1-0-|

Riff 1
Riff 2

Riff 3: on second time through, play 2nd and 3rd measures twice each
---------------------|------------------|-----------------|
---------------------|------------------|-----------------|
---------------------|------------------|-----------------| x2
-5-------7---------2-|------------------|-----------------|
-3---5---5---7-----0-|--2-2-3-3-3-5-3-2-|-2-2-3-3-3-5-3-2-|
-----3-------5---3---|--0-0-1-1-1-3-1-0-|-0-0-1-1-1-3-1-0-|

Riff 1 (x12 instead of x8)
Riff 2
Riff 3

Riff 4: solo

Riff 1 (x12 instead of x8)
Riff 2

Riff 4
Riff 3: on last time through, play 2nd and 3rd measures twice each
---------------------|------------------|-----------------|
---------------------|------------------|-----------------|
---------------------|------------------|-----------------| x4
-5-------7---------2-|------------------|-----------------|
-3---5---5---7-----0-|--2-2-3-3-3-5-3-2-|-2-2-3-3-3-5-3-2-|
-----3-------5---3---|--0-0-1-1-1-3-1-0-|-0-0-1-1-1-3-1-0-|