Kanye West - Devil In A New Dress Bass

The entire song is basically these two parts played back and forth.

(1)
G|---------------------------------------------------------------------------|
D|----------------11----9----6---------------------11---9-6------------------|
A|---7----------------------------7---------------------------7----6---------|
E|---------------------------------------------------------------------------|


------------------------------------------------------|
---------------------13---13---------13--15--16-------|
-----13--13--13-----------------13--------------------|
------------------------------------------------------|

(2)
G|---------------------------------------------------------------------------|
D|----------------11----9----6---------------------11---9-6------------------|
A|---7----------------------------7------------------------------7----6------|
E|---------------------------------------------------------------------------|

-------------------------------------------------------|
-----------------13------------------------------------|
----13--13--13----------------1-1--1---2--2--6-6--6----|
------------------------4--4---------------------------|

{Here is an alternate/easier way of playing the ending of part (1). I prefer playing it
at the 13th fret because it gives off a thicker, bassier sound, but this other way works
just fine}

{G|-------------8---8--------8--10--11---|}
{D|---8--8--8-------------8--------------|}
{A|--------------------------------------|}
{E|--------------------------------------|}


{Also, after part (1) is played through for the first time, I like to add in the sixth
fret on the A string every other time it is played throughout the song. I don't think
that note on the sixth is played in the actual recording, I just feel like every other 
time it is played it keeps the groove, ya know?}

(1)
{G|--------------------------------------------------------}
{D|---------------------------11----9----6-----------------}
{A|-----(6)--------7----------------------------7----------}
{E|--------------------------------------------------------}