Gallows - The Vulture Act 1 chords

I love Gallows and I loved this song so I thought I'd do my very best with this :) My
is pretty simple, I don't think this is how they play it but it's something for you to
with. I believe the tuning is D but it might be half-step. Bear in mind before you tell
it's in Drop D or some open tuning something like that this isn't how they play it, just
I do.

Right the way this works, if you listen to the song you can hear that before he switches
chord he strums a little of the previous chord. So for example when you see the switch
the C from the Em7, you strum the Em7 as normal and when you change to the Em7 you strum 
quickly before changing. Where I've noted the chord changes is merely where the
changes.
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Where the power chords are listed the octave can be replaced with an open note. This
make it sounds more hollow and lacking texture which can be used for eerie effect. For
x355xx to x35000. Use either one or your own variation, it's just fun to play with.

Em7  : 022033
C    : x32010 OR C5: x355xx
B5   : x244xx
D5   : x57700
Bb7  : x13231
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Intro: Em7, C, B5, D5
[ Tab from: http://www.guitaretab.com/g/gallows/227702.html ]
Verse:
Em7                          C
   When you work for the father
             B5
Of sinners never saved,
                   D5
You carry the net,
                 Em7
And he holds a spade
Em7                       C
   You will drag the lakes,
                       B5
he will rob the graves.
                 D5
You will be remembered,
                            Em7
no one will speak your name.

Chorus:
C                B5
Cursed are the places you have been,
             Bb7        D5
you lead us there and forced us in.
Em7               C
   Take the girls,
                         B5
to become the daughters,
                         Bb7
and if the horses won't drink,
                         Em7
drown them in the water.

Verse:
Em7                            C
   When you work for the father
             B5
of sinners never saved,
               D5
you carry the net,
                     Em7
and he holds the spade.
                    C
You will drag the lakes,
                       B5
he will rob the graves.
                       D5
You will be remembered,
                            Em7
no one will speak your name.

Chorus:

Em7            C                     B5
Cursed are the places you have been,
                       Bb7           D5
you lead us there and you forced us in.
C                 Em7
  Take the girls,
                      B5
to become the daughters,
                        Bb7
and if the horses won't drink,
                         Elec. Starts here
drown them in the water