4 string bass-BEAD low to high. Rayna uses a pick on Chamber Music for this song,but it sounds good if you just use your fingers...

Pre-verse/Chorus:
D|
A|
E|
B|3-3-2-2-3-3-3-2-2-3-

Verse:
D|
A|
E|2/7---2/7-------------
B|----------5-5-6-6-5-5-

Play the Chorus(which is also the pre-verse,then):
D|
A|
E|
B|0--0--0--0--0-0-

Then play the verse,chorus,then:
D|
A|
E|
B|3-3-2-2-3-2-2-3-2-3-3-3-2-3-

Interlude:
D|
A|
E|2/7---2/7---2/7--2/7--
B|

D|
A|
E|2/7--2/7---------------
B|-----------5-5-6-6-5-5-
Repeat once,then:
D|
A|
E|2-2-7-7-2-2-7-7-2-2-7-7-2-2-7-7-
B|

Then go back and play the Pre-verse/Chorus to the end.