It's Shoved tab by Melvins

Riff 1 - Intro
e|--------------------------------------|
B|--------------------------------------|
G|--------------------------------------|
D|--------------------------------------|
A|----/7 sustain and bend --------------|
E|--------------------------------------|

Listen to the track for when and how to bend the note


 Riff 2 - Weird riff
e|----------------------------|
B|----------------------------|
G|------99--------------------|
D|------------88--------------|
A|---77----77----77--7p0-7^---|
E|---0-----0-----0------------|

This riff is basically an arpegiated diminished chord
but it is all about how its played. That being sloppy
with lots of noise and incidentals, you also need to
sorta bend and pull off the second of each doubled note.
No idea if this is accurate but worked for me.


 Riff 3 - Descending chug riff
e|--------------------------------------------------------------|
B|--------------------------------------------------------------|
G|--------------------------------------------------------------|
D|--------------------------------------------------------------|
A|--7--7-7-7--6--6-6-6--5--5-5-5--4--4-4-4--3--3-3-3--2--2-2-2--|
E|--0--0-0-0--0--0-0-0--0--0-0-0--0--0-0-0--0--0-0-0--0--0-0-0--|
pm

Keep chugging the E5 chord at the end for however long
i aint counting it.


 Riff 4 - Main riff
e|-------------------------------------|
B|-------------------------------------|
G|-------------------------------------|
D|-------------------0-0-0-2-2-0----0--|
A|--2-2-2-4-4-4-4-2--x-x-x-0-0-x-2--x--|
E|--0-0-0-0-0-3-3-0--3-3-3-----3-0--3--|

First four bars with light palm muting, then heavier muting
after that.


 Riff 5 - Bridge
e|--------------*-*-*-*--*--|------------------------|
B|--------------*-*-*-*--*--|------------------------|
G|-----------*--*-*-*-*--*--|--2-2------2----2-------|
D|-----------*--*-*-*-*--*--|--2-2--0-0-2--0-2--0-2--|
A|--2-4-4-0--*--------------|--0-0--x-x-0--x-0--x-2--|
E|--0-0-3-0--*--------------|-------3-3----3^---3^0--|
           nh

Natural harmonics played around the 3rd and 4th frets
Listen to the track for the exact rhythm/strumming pattern
and for the bends on the G notes (3rd fret E string)
in the G5 chords in the second bar. You also need to pull
off to open string on some of G notes, again listen for which ones


 Riff 6 - Main riff variation
e|---------------------------------------|
B|---------------------------------------|
G|------------------2-2----2----2--------|
D|----------------0-2-2--0-2--0-2--0-2---|
A|--2-2-2-4-4-4-4-0-0-0--x-0--x-0--x-2---|
E|--0-0-0-0-0-3-3-0------3^---3^---3^0---|
This is basically Riff 4 but
the ending is switched with that of Riff 3.

 Riff 7 -
e|-----------------------------------------------------------------|
B|-----------------------------------------------------------------|
G|-----------------------------------------------------------------|
D|---------------------------------------9-------------------------|
A|--2---2--2-2--2--0--5---5-5--5--5--5---7--play this chord for x--|
E|--0---0--0-0--0--0--3---3-3--3--3--3---0-------------------------|

Listen to the record for the rhythm.
The final E chord plays for like two bars,
its kinda arbitrary as live versions Buzz
seems to draw it for however long he feels.


 Riff 8
e|------------------------------------------|
B|------------------------------------------|
G|------------------------------------------|
D|--------9--------9-7-------7-----7-6-7-6--|
A|--------7--------7-5---7-9-5-9-7-5-4-5-4--|
E|--0--0-----0-0-0-------5-7---7-5----------|

On the first bar I think this its played as 4ths then
switches to 5ths (as tabbed) when the beat kicks in.


 Riff 9 - Outro/Spiral riff
e|---------------------------------|
B|---------------------------------|
G|---------------------------------|
D|----------4-5-7-6---------4-5----|
A|--7-6-3-4-2-3-5-4-7-6-3-4-2-3-2--|
E|--5-4-1-2---------5-4-1-2-----0--|


Hope this helps, I have done my best to indicate the rhythm
in the tab but you may need to listen to the record to get it.

Enjoy!

-------------------------
 pm = palm muting      :
 ^ = bend              :
 * = Natural harmonic  :
 p = pull of           :
-------------------------