E|------------------------------------------------------------------------------|
                             Frustration - Metallica and Lou Reed
E|------------------------------------------------------------------------------|-
Tabbed by: mnbertoldi

Tuning: Drop C

1st riff – The song starts like that:
E|-------------------------------------------------------------|
B|-------------------------------------------------------------|
G|-------------------------------------------------------------|
D|-----------------------------3-2-----------------------------|
A|--3h5-55-x-3-5-3-5-6-5-3-5-3-----3h5-55-x-3-5-3-5-6-5-3------|
E|--0---00-x-0-0-0-0-0-0-0-0-0-----0---00-x-0-0-0-0-0-0-0-6~---|

2nd riff – That’s when Lou Reed starts singing (That’s not much accurate but works fairly well)
E|-------------------------------------------------------------|
B|-------------------------------------------------------------|
G|-------------------------------------------------------------|
D|------------8--7--5--0---------------------------------------|
A|--0-xx-0----5--5--5--0---------------------------------------|
E|--0-xx-0----5--5--5--0---------------------------------------|

Then it goes to the first riff again... and then: 
E|------------------------------------------------------------------|
B|------------------------------------------------------------------|
G|------------------------------------------------------------------|
D|------------------------------------------------------------------|
A|--0b2-2-2--0-2-0-2-3-2-0-2-0---------0b2-2-2--0-2-0-2-3-2-0-------|
E|--0b2-2-2--0-2-0-2-3-2-0-2-0-5-4-----0b2-2-2--0-2-0-2-3-2-0-/8~---|

And then, second riff again, before Metallica stop playing and Reed start speaking.
All this shit goes twice.
And then there is a faster riff like this:

E|------------------------------------------------------------------|
B|------------------------------------------------------------------|
G|------------------------------------------------------------------|
D|------------------------------3-2---------------------------------|
A|--3h5-5-3h5-5-3h5-5-3h5-5-3h5-----3h5-5-3h5-5-3-5-5b-br-3-5-------|
E|--0---0-0---0-0---0-0---0-0-------0---0-0---0---------------6~----|

And then

E|------------------------------------------------------------------|
B|------------------------------------------------------------------|
G|------------------------------------------------------------------|
D|--------------------------3-2-------------------------------------|
A|--5----5----5----5----5-3-----5----5----5----5-----6--------------|
E|--0-xx-0-xx-0-xx-0-xx-0-x-----0-xx-0-xx-0-xx-0-xx| -6--------------|

And Then
E|------------------------------------------------------------------|
B|------------------------------------------------------------------|
G|------------------------------------------------------------------|
D|------------------------------------------------------------------|
A|-----5b-----------------------------------------------------------|
E|--0----5b5~-3-3---------------------------------------------------|