Artist: The Mars Volta
Album: Amputechture
Song: Viscera Eyes

Main Riff: A
|-------------------------------------------------------------|
|-------------------------------------------------------------|
|-------------------------------------------------------------|
|-5-5-5-5-5-5-5-5-5-----------------8-8-8--3-3-3--4-4-4-4-4-4-|
|-5-5-5-5-5-5-5-5-5-----------------8-8-8--3-3-3--4-4-4-4-4-4-|
|-3-3-3-3-3-3-3-3-3-----------------6-6-6--1-1-1--2-2-2-2-2-2-|

Main Riff: B 
|---------------------------------|
|-8-------------------------------|
|-x-(just continually strum this)-|
|-5-------------------------------|
|---------------------------------|
|---------------------------------|

Lead Riff 0:49 (Used with an octave effect)
|-------------------------------------------------------------------------------------------------------------------|
|-------------------------------------------------------------------------------------------------------------------|
|----7---10------------------------------------------------10-10----------------------------------------------------|
|-10---9-----9------------------7----8------10-10---12-12--------------12-12-10-12---10-10-8-10---8-8-7-8---7-------|
|---------------10-----------5-----8---------------------------------------------------------------------------8----|
|-----------------------------------------------------------------------------------------------------------------8-|

Lead Riff 0:49 Cont'd
|-----------------------------------------------|
|-----------------------------------------------|
|-----------------------7---7s10-10s12-12s14-14-|
|-------10----9----8----------------------------|
|---9-------9----9------------------------------|
|-8---8-----------------------------------------|

Lead Riff 1:33
|--------------------------------|
|--------------------------------|
|-0-10-0-12--0-10--0-----0-------|
|--------------------10----12-x4-|
|--------------------------------|
|--------------------------------|

Chorus 1:42            1st Ending                     2nd Ending                       3rd Ending
|-----------|------------------------------|------------------------------|------------------------------------|
|-----------|------------------------------|------------------------------|------------------------------------|
|-12--------|-0-10-0-15-0-10-0-12--0-10----|-0-10-0-15-0-10--------10--11-|----------10p0-------------10-14-12-|
|----12s5---|----------------------------8-|------------------------------|---------------8s10--10-12----------|
|-----------|------------------------------|-------------------12---------|-10h13p10---------------------------|
|-----------|------------------------------|------------------------------|------------------------------------|

             4th Ending
|-----------------------------------|
|-----------------------------------|
|-0-10-0-15-0-11---0-11-11-12h13----|
|--------------------------------12-|
|-----------------------------------|
|-----------------------------------|

Chorus Cont'd
|--------------------------------------------|---------------|
|--------------------------------------------|---------------|
|--------------------------------------------|-x-3--x-3--x-3-|
|------------------0-3-0-8-0-3-0-5--0-3------|-x-3--x-3--x-3-|
|-10------------------------------------1-x4-|-x-1--x-1--x-1-|
|----10s3------------------------------------|---------------|

Lead Riff 2:19
|-------------------------------------------------------------------------------------------------------------------|
|-------------------------------------------------------------------------------------------------------------------|
|----7---10------------------------------------------------10-10----------------------------------------------------|
|-10---9-----9------------------7----8------10-10---12-12--------------12-12-10-12---10-10-8-10---8-8-7-8---7-------|
|---------------10-----------5-----8---------------------------------------------------------------------------8----|
|-----------------------------------------------------------------------------------------------------------------8-|

Lead Riff 2:19 Cont'd
|-------------------------------------------------|
|-------------------------------------------------|
|-------------------------7---7s10-10s12-12s14-14-|
|-------10-----9-----8----------------------------|
|---9--------9-----9------------------------------|
|-8---8----8-----8--------------------------------|

Lead Riff 3:57
|------------------------------------------------------------------|
|------------------------------------------------------------------|
|-/12---------------15-15-14---------------------------------------|
|--------------10---------------------13------------8-10-10s3-3-x5-|
|------------------------------------------------------------------|
|------------------------------------------------------------------|

(This is played at the beginning of the above riff after the above riff has been played twice)
|------------|
|------------|
|-/10s8s6-x3-|
|------------|
|------------|
|------------|

After Lead Riff 3:57 is played three times, Lead Riff 0:49 is also played, and after it has been played 3.5 times,
the 1st part of the chorus is played.

5:25 (2nd Part of Chorus)
|--------------------------------------------|----------------------------------------------|
|--------------------------------------------|----------------------------------------------|
|--------------------------------------------|-x-3--x-3--x-3-3-3--x-3-3-3--x-3-3--x-3-3-x-3-|
|------------------0-3-0-8-0-3-0-5--0-3------|-x-3--x-3--x-3-3-3--x-3-3-3--x-3-3--x-3-3-x-3-|
|-10------------------------------------1-x4-|-x-1--x-1--x-1-1-1--x-1-1-1--x-1-1--x-1-1-x-1-|
|----10s3------------------------------------|----------------------------------------------|

5:48 Guitar 1
|--------------------------------------|
|-----------------------7---7-8-7-8-10-|
|-----6---6-7-6-7-8-7-8---8------------|
|-7-8---8------------------------------|
|--------------------------------------|
|--------------------------------------|

5:48 Guitar 2
|--------------------------------------------|
|--------------------------------------------|
|----------------------------------8----8-10-|
|------7---7-8-7-8-10-8-10-11-9-10---11------|
|-9-10---9-----------------------------------|
|--------------------------------------------|

The Solo for this song is quite complicated and hard to understand, so that will take me a while to tab.
However, when I'm done, I will post it in a seperate tab. Until then, enjoy.