Right, this is played with altered tuning, starting with the low E string - E, B, D#, e, b, d#

It's played in 4/4 time signature and tempo of 112.5 bpm

Dallas starts off with a barre on 12, and then into...

d#| (xx4342@1)- - 0 0 - - 0 0 | - - 0 0 - - 0 0 | - - 0 0 - - 0 0 | - - 0 0 - - 0 0 |
b (x24432@1)| - - 0 0 - - 0 0 | - - 0 0 - - 0 0 | - - 0 0 - - 0 0 | - - 0 0 - - 0 0 |
e (022000@1)| 7 6 7 6 7 6 7 6 | 7 6 7 6 7 6 7 6 | 7 6 7 6 7 6 7 6 | 7 6 7 6 7 6 7 6 |
D#| (x43121@3)5 5 5 5 5 5 5 5 | 5 5 5 5 5 5 5 5 | 5 5 5 5 5 5 5 5 | 5 5 5 5 5 5 5 5 |
B (x2444x@1)| 4 4 4 4 4 4 4 4 | 4 4 4 4 4 4 4 4 | 0 0 0 0 0 0 0 0 | 0 0 0 0 0 0 0 0 |
E (022100@1)| 4 4 4 4 4 4 4 4 | 4 4 4 4 4 4 4 4 | 0 0 0 0 0 0 0 0 | 0 0 0 0 0 0 0 0 |

this is the main riff for the verses and chorus. The strumming seems to be just 
 strumming through it more to hit the top strings on the off-beats.

repeat this 6 times, the last time playing the upbeat to the next riff...

d#...0 (xx4342@1)0 | 0 - 0 0 0 - 0 0 - 0 0 | 0 - 0 0 0 - 0 0
b (x24432@1)...0 0 | 0 - 0 0 0 - 0 0 - 0 0 | 0 - 0 0 0 - 0 0
e  ...1111| 11- 7 7 7 - 7 7 - 1111| 11- 7 7 7 - 7 7-|
D# ...1010| 10- 5 5 5 - 5 5 - 1010| 10- 5 5 5 - 5 5-|
B (x2444x@1)...9 9 | 9 - 4 4 4 - 4 4 - 9 9 | 9 - 4 4 4 - 4 4
E (022100@1)...9 9 | 9 - 4 4 4 - 4 4 - 9 9 | 9 - 4 4 4 - 4 4

use dud, dud, dd as the strumming pattern to get the quick triplets and slower quavers,

d#0 (xx4342@1)0 | 0 - 0 0 0 - 0 0 - 0 0 | 0 - 0 0 0 - 0 0
b (x24432@1)0 0 | 0 - 0 0 0 - 0 0 - 0 0 | 0 - 0 0 0 - 0 0
e (022000@1)9 9 | 9 - 7 7 7 - 7 7 - 9 9 | 9 - 7 7 7 - 7 7
D#8 (x43121@3)8 | 8 - 5 5 5 - 5 5 - 8 8 | 8 - 5 5 5 - 5 5
B (x2444x@1)7 7 | 7 - 0 0 0 - 0 0 - 7 7 | 7 - 0 0 0 - 0 0
E (022100@1)7 7 | 7 - 0 0 0 - 0 0 - 7 7 | 7 - 0 0 0 - 0 0

This is repeated 4 times (16 bars), and then returns to...

d#| (xx4342@1)- - 0 0 - - 0 0 | - - 0 0 - - 0 0 | - - 0 0 - - 0 0 | - - 0 0 - - 0 0 |
b (x24432@1)| - - 0 0 - - 0 0 | - - 0 0 - - 0 0 | - - 0 0 - - 0 0 | - - 0 0 - - 0 0 |
e (022000@1)| 7 6 7 6 7 6 7 6 | 7 6 7 6 7 6 7 6 | 7 6 7 6 7 6 7 6 | 7 6 7 6 7 6 7 6 |
D#| (x43121@3)5 5 5 5 5 5 5 5 | 5 5 5 5 5 5 5 5 | 5 5 5 5 5 5 5 5 | 5 5 5 5 5 5 5 5 |
B (x2444x@1)| 4 4 4 4 4 4 4 4 | 4 4 4 4 4 4 4 4 | 0 0 0 0 0 0 0 0 | 0 0 0 0 0 0 0 0 |
E (022100@1)| 4 4 4 4 4 4 4 4 | 4 4 4 4 4 4 4 4 | 0 0 0 0 0 0 0 0 | 0 0 0 0 0 0 0 0 |

for another 2 repeats (8 bars)


The bridge varies on his album and live versions,
The album version is simply the one chord...

d# - 0 -
b (x24432@1)- 0 -
e (022000@1)- 7 -
D# - 5 -
B (x2444x@1)- 4 -
E (022100@1)- 4 -

and on the live version he alternates between the two chords....

d#- (xx4342@1)0 - 0 -
b (x24432@1)- 0 - 0 -
e (022000@1)- 7 - 7 -
D#- (x43121@3)5 - 5 -
B (x2444x@1)- 4 - 0 -
E (022100@1)- 4 - 0 -

either way, palm mute the top strings and repated for the duration of 8 bars,

then into the 2nd riff again...

d#0 (xx4342@1)0 | 0 - 0 0 0 - 0 0 - 0 0 | 0 - 0 0 0 - 0 0
b (x24432@1)0 0 | 0 - 0 0 0 - 0 0 - 0 0 | 0 - 0 0 0 - 0 0
e  1111| 11- 7 7 7 - 7 7 - 1111| 11- 7 7 7 - 7 7-|
D# 1010| 10- 5 5 5 - 5 5 - 1010| 10- 5 5 5 - 5 5-|
B (x2444x@1)9 9 | 9 - 4 4 4 - 4 4 - 9 9 | 9 - 4 4 4 - 4 4
E (022100@1)9 9 | 9 - 4 4 4 - 4 4 - 9 9 | 9 - 4 4 4 - 4 4


d#0 (xx4342@1)0 | 0 - 0 0 0 - 0 0 - 0 0 | 0 - 0 0 0 - 0 0
b (x24432@1)0 0 | 0 - 0 0 0 - 0 0 - 0 0 | 0 - 0 0 0 - 0 0
e (022000@1)9 9 | 9 - 7 7 7 - 7 7 - 9 9 | 9 - 7 7 7 - 7 7
D#8 (x43121@3)8 | 8 - 5 5 5 - 5 5 - 8 8 | 8 - 5 5 5 - 5 5
B (x2444x@1)7 7 | 7 - 0 0 0 - 0 0 - 7 7 | 7 - 0 0 0 - 0 0
E (022100@1)7 7 | 7 - 0 0 0 - 0 0 - 7 7 | 7 - 0 0 0 - 0 0

Which is repeated 4 times and finally...


d#0 (xx4342@1)0 | 0 - 0 0 0 - 0 0 - 0 0 | 0 - 0 0 0 - 0 0
b (x24432@1)0 0 | 0 - 0 0 0 - 0 0 - 0 0 | 0 - 0 0 0 - 0 0
e (022000@1)7 7 | 7 - 7 7 7 - 7 7 - 7 7 | 4 - 4 4 4 - 4 4
D#5 (x43121@3)5 | 5 - 5 5 5 - 5 5 - 5 5 | 3 - 3 3 3 - 3 3
B (x2444x@1)4 4 | 4 - 4 4 4 - 4 4 - 4 4 | 2 - 2 2 2 - 2 2
E (022100@1)4 4 | 4 - 4 4 4 - 4 4 - 4 4 | 2 - 2 2 2 - 2 2

d#0 (xx4342@1)0 | 0 - 0 0 0 - 0 0 - 0 0 | 0 - 0 0 0 - 0 0
b (x24432@1)0 0 | 0 - 0 0 0 - 0 0 - 0 0 | 0 - 0 0 0 - 0 0
e (022000@1)4 4 | 0 - 0 0 0 - 0 0 - 0 0 | 9 - 9 9 9 - 9 9
D#3 (x43121@3)3 | 3 - 3 3 3 - 3 3 - 3 3 | 8 - 8 8 8 - 8 8
B (x2444x@1)2 2 | 0 - 0 0 0 - 0 0 - 0 0 | 7 - 7 7 7 - 7 7
E (022100@1)2 2 | 0 - 0 0 0 - 0 0 - 0 0 | 7 - 7 7 7 - 7 7

which is repeated 4 times and then back to the root chord again:

d#- (xx4342@1)0 -              - 12~-------------|
b (x24432@1)- 0 -              - 12~-------------|
e  - 7 -  repeated until the end  - 12~-|
D#- (x43121@3)5 -              - 12~-------------|
B (x2444x@1)- 4 -              - 12~-------------|
E (022100@1)- 4 -              - 12~-------------|


well, i'm almost certain most of it's correct! it looks the same on the fingerboard to 
dallas green plays it, and it sounds the same - think the ending

riff might be different to the album version, bit it's hard to tell with the cello over the top.

Hope that's a help, and what a cool tune!