Artist : Black Flag
Song : In My Head
Tabbed by : Josh Sewak
Tunning : Standard

...= palm mutute

Riff A
e|--------------------------------------|
B|--------------------------------------|
G|--------------------------------------|
D|---7---8----10---8---7---8--8-77-8-77-|
A|--7---8---10----8---7---8---8-77-8-77-|
E|-5---6---8-----6---5---6----6-55-6-55-|

Riff B
e|-------------------------------------------------------|
B|-------------------------------------------------------|
G|--------7--------10-9-7-------------7------------------|
D|-7-8-10---10-8-7--------10-8-7-8-10---10-8--8-77-8-77--|
A|--------------------------------------------8-77-8-77--|
E|--------------------------------------------6-55-6-55--|

or!!! (both are the same; play whatevers comfortable)

e|-------------------------------------------------|
B|-------3-------6-5-3-----------3-----------------|
G|-2-3-5---5-3-2-------5-3-2-3-5---5-3-------------|
D|--------------------------------------8-77-8-77--|
A|--------------------------------------8-77-8-77--|
E|--------------------------------------6-55-6-55--|

Riff C
e|--------------------------------------------------|
B|--------------------------------------------------|
G|--------------------------------------------------|
D|5-55-55-55-55-55-55-55-5877877877877877877877877--|
A|5-55-55-55-55-55-55-55-5877877877877877877877877--|
E|3-33-33-33-33-33-33-33-3655655655655655655655655--|


Riff D
e|------------------------------------|
B|------------------------------------|
G|------------------------------------|
D|5-55-55-55-53-2222-2222-2222-2222---|
A|5-55-55-55-53-2222-2222-2222-2222---|
E|3-33-33-33-30-0000-0000-0000-0000---|
                ...  ...  ...  ...

Riff E
e|---------------------------|
B|---------------------------|
G|---------------------------|
D|-1010101010108888887777777-|
A|-1010101010108888887777777-|
E|--8-8-8-8-8-86666665555555-|


Song Structure:
                A x 2 -Intro 
                B x 2  
                C x 2   
                B x 2     Verse sequence
                C x 2    /
                D x 1   /
                E x 1  /
                Repeat Verse sequence
                A x 2  
                B x 2   Solo backing
                D x 1   /
                E x 1  /
                Repeat Verse sequence

This tab is almost 100% correct. enjoy :]