This is probably Atheist's easiest song by far and the only I would attempt to play 
than mineral. Listen to it for exact timing.
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Key: ~ = Vibrato|
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Intro Bass Section
G|18-17-15--15~-13~--|
D|--------17---------|
A|-------------------|
E|-------------------|

Bass Line A

G|-----------------------|----------------------|Play one and then the other
D|-------------------1---|-----------------1----|as a variation.
A|1-1--1-1---------2---2-|1-1--1---------2---2--|
E|---------0-0-1-2-------|-------0-0-1-2--------|

Pre-Verse Riff

G|--------------|
D|--------------|
A|1-4-1---1-4---|
E|------1-----2-|

Verse Riff

G|---(2X)---|---(2X)----|
D|------5-5-|------7-7--|
A|5---------|7----------|
E|--5-3-----|--7-5------|

Pre-Bass Solo

G|---------| This is played once before the bass solo which I've yet to
D|---------| figure out.
A|1-1--1-1-|
E|---------|

Bass Line B

G|------------------------|---------------------|
D|-------------------1----|-----------------1---| Play the first and then
A|1-1--1-1---------2---2--|1-1--1---------2-----| the other one.
E|---------0-0-1-2--------|-------0-0-1-2-------|

Pre-Chorus

G|-----------------|
D|-----------------|
A|1-1---------2-2--|
E|----0-0-1-1------|

Chorus

G|-------------|
D|2-0-3--------|
A|----------2--|
E|------0-1----|

Guitar Solo

G|----(2X)---|----(2X)---|
D|------7-7--|------5-5--|
A|7----------|5----------|
E|--7-5------|--5-3------|

Bass Line C

G|------------------------|----------------------|Alternate between the two.
D|-------------------1-0--|-----------------1----|
A|1-1--1-1---------2------|1-1--1---------2---2--|
E|---------0-0-1-2--------|-------0-0-1-2--------|


Last Pre-Verse

G|------------------|
D|------------------|
A|1-1------------2--|
E|----0-0-0-1--1----|