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Tabbed by James "Inverted" Williams (I*)
Corrected by Chris Rezendes (*)

Tuning: Half step down

Notation Key
v: vibrato
t: tremolo bar
^: bend
.: palm mute
~: trill
p: pull-off
h: hammer-on
x: ghost note
/: slide up
\: slide down

Comments: Riffs 2 and 7 were completely correct as transcribed by Inverted and no changes were made.  Figure 1 and Riff 6 were completely correct as transcribed by Inverted, but were slighly modified by Chris so as to play easier.  Riff 3 was ever so slightly modified by Chris.  Riffs 1, 4, and 5 were completely redone by Chris.  
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Riff 1 x10
e|---------------------------------|
B|---------------------------------|
G|---------------------------------|
D|----------5\4---4\3--------------|
A|----------3\2---2\1--------------|
E|--0-3-2-0-----0-----0-1-0-3-2-1--|
    . . . .     .     . . . . . . 

Fig. 1 x4
e|-----|--------------------------|-----|--------------------------|
B|-----|--------------------------|-----|--------------------------|
G|-----|--4-5---------------------|-----|--------------------------|
D|--2--|--2-3---------------------|--2--|--5-4---------------------|
A|--2--|--------------------------|--2--|--3-2-111111111111111111--|
E|--0--|------111111111111111111--|--0--|--------------------------|
              ..................               ..................

Riff 2 x8
e|-------------------------------------------|
B|-------------------------------------------|
G|-------------------------------------------|
D|-------------------------------------------|
A|--------------------------------333333333--|
E|--000000000-333333333-222222222------------|

Riff 3 x4
e|-------------------------------------------|
B|-------------------------------------------|
G|-------------------------------------------|
D|-------------------------------------------|
A|--------------------------------8888-7777--|
E|--333333333-666666666-555555555------------|

Riff 4 x4
e|---------------------------------------|
B|---------------------------------------|
G|---------------------------------------|
D|--------------------------------4---4--|
A|-------------33332222-----------2---2--|
E|--0000000000----------111111111---0----|
    .......... ........ .........   .

Riff 5 x4
e|------------------------------------------|------------------------------------------|
B|------------------------------------------|------------------------------------------|
G|------------------------------------------|------------------------------------------|
D|-----------------------------------4---4--|-----------------------------------4---3--|
A|-----------------------------------2---2--|-----------------------------------2---1--|
E|--000000000000000000-1111111111111---0----|--000000000000000000-1111111111111---0----|
    .................. .............   .       .................. .............   .

Riff 6 x2
e|------------------------------------------|------------------------------------------|
B|------------------------------------------|------------------------------------------|
G|------------------------------------------|------------------------------------------|
D|------------2222-3333---------------------|------------------------------------------|
A|------------------------------------------|------------3333-2222-111111111111111111--|
E|--000000000-----------111111111111111111--|--000000000-------------------------------|
    ......... .... .... ..................     ......... .... .... ..................

Repeat Fig. 1 x2
Repeat Riff 2 x8
Repeat Riff 3 x4
Repeat Riff 4 x4
Repeat Riff 5 x4

Riff 7 x3
e|------------------------------------------|
B|------------------------------------------|
G|------------------------------------------|
D|------------------------------------------|
A|--333333333-222222222---------------------|
E|----------------------111111111111111111--|

End x1
e|-------------------------|
B|-------------------------|
G|-------------------------|
D|----------------------3--|
A|--333333333-222222222-3--|
E|----------------------1--|

Six Feet Under, Hypocrisy and Grave