Sectarian by Steven Wilson
From the 2011 album Grace for Drowning (Buy it.)
EADGBe (Standard)

INTRODUCTION  00-1:09
Acoustic  (He doesn’t use these chord voicings live)
7/4
e|0-----0--0-0--|0-----0--0-0--|0-----0--0-0--|0-----0--0-0--|
B|5-----5--5-5--|5-----5--5-5--|5-----5--5-5--|5-----5--5-5--|
G|0-----0--0-0--|0-----0--0-0--|0-----0--0-0--|0-----0--0-0--|
D|4-----4--4-4--|4-----4--4-4--|4-----4--4-4--|4-----4--4-4--|
A|3-333-3-33-3-3|3-333-3-33-3-3|3-333-3-33-3-3|3-333-3-33-3-0|
E|--------------|--------------|--------------|--------------|

e|--------------|--------------|--------------|--------------|
B|4-----4--4-4--|4-----4--4-4--|4-----4--4-4--|4-----4--4-4--|
G|2-----2--2-2--|2-----2--2-2--|2-----2--2-2--|2-----2--2-2--|
D|2-----2--2-2--|2-----2--2-2--|2-----2--2-2--|2-----2--2-2--|
A|0-000-0-00-0-0|0-000-0-00-0-0|0-000-0-00-0-0|0-000-0-00-0-3|
E|--------------|--------------|--------------|--------------|

Lead
:17
e|------0--|-------------2-----|----0------------|---0------|
B|--4-----4|---4------5----5---|---4--4----------|----4-----|
G|----2----|---2--------------0|-----------------|-----2----|
D|---------|---2-----4---------|---------2/4--4/5|---------5|
A|0--------|---0---3-----------|0----------------|3---------|
E|---------|-------------------|-----------------|----------|

:52                          1:03
e|----0--2--3---2-----------|2-----------|
B|-----4--4-------------4---|-4--------4-|
G|------0--0-------------2--|--0------2-2|
D|---------------------2----|-----4------|
A|3----------------0--------|------------|
E|--------------------------|------------|

1:09
Most of the space is being taken up by the bass and synth vamping on the chord roots.  
The other instruments attack, in the same rhythm as before, roughly these chords:

e|5-----5--5-5--|       e|3-----3--3-3--|
B|7-----7--7-7--|  and  B|7-----7--7-7--|
G|5-----5--5-5--|       G|5-----5--5-5--|


Lead
1:33
e|---------------------------------|
B|5--7---9--11---13--15---17--19---|
G|---------------------------------|
D|---------------------------------|
A|---------------------------------|
E|---------------------------------|

7/4 phrased in 6/8
1:44
e|15-----12-----15-----12-----15---|
B|--13-15--15-13--13-15--15-13--13-|
G|---------------------------------|
D|---------------------------------|
A|---------------------------------|
E|---------------------------------|

e|--12-----15-----12-----15-----12-|
B|15--15-13--13-15--15-13--13-15---|
G|---------------------------------|
D|---------------------------------|
A|---------------------------------|
E|---------------------------------|

e|-----15-----12-----15-----12-----|
B|15-13--13-15--15-13--13-15--15-13|
G|---------------------------------|
D|---------------------------------|
A|---------------------------------|
E|---------------------------------|

e|15-----12-----15-----12-----15---|
B|--13-15--15-13--13-15--15-13--13-|
G|---------------------------------|
D|---------------------------------|
A|---------------------------------|
E|---------------------------------|

Lead
2:41
e|---------------------------------|
B|5--7---9--11---13--15---17--19---|
G|---------------------------------|
D|---------------------------------|
A|---------------------------------|
E|---------------------------------|

e|---------------------------------|
B|5--7---8--10---11----------------|
G|---------------------------------|
D|---------------------------------|
A|---------------------------------|
E|---------------------------------|

Chords - same rhythm as intro
3:02
e|7----7----0-|
B|9----9----1-|
G|9----9----2-|
D|9----7----2-|
A|7----7----0-|
E|------------|

Keyboard solo

Theme repeat

Outro Chords - same rhythm as intro
6:44
e|7----0----7-|
B|9----5----9-|
G|9----0----9-|
D|9----4----9-|
A|7----3----7-|
E|------------|

Disclaimer (of sorts): I usually play in Eb, so I was transcribing this with a capo on 1 
and then transposing everything down a half step. I triple checked, but if anything 
sounds super wrong, try lowering it by one fret because I might have missed something.

Otherwise, enjoy!