These are the chords I have come up with for Petite Mort (so far).
I really like this song, but unfortunately there aren't any tabs or chords online. 
What you see here I have figured out by ear. I'm sure I made mistakes. 
I'm hoping that this will give more talented musicians than I a place to start from. 
Maybe together we can figure the whole thing out! 

Note: The chords in this song change quickly, especially during the verse.

Tuning: Down One Half Step
All chords shapes relative to tuning (when it says C, you play it like a C in 
first position but it's really a B) 

Intro (0:00-0:12)

E--------------------------------------------------------|
B--------------------------------------------------------|
G---------------------0-----------4----------------------|
D---2-----2-----2----2-2----2----5-4---------------------|
A--3-3---3-3---2-2--0------3-3--5------------------------|
E-3-----3-----0-----------3------------------------------|

(I haven't figured out the lick from 0:12-0:18, which is repeated throughout)

(0:18)

Em B 
C/G Am7 G D Am D Em 
Am D G B 

Verse 1 

Em                              B
Petite Mort, I asked you for an answer
C/G            Am7            G      D
Petite Mort, I sang until you slept
Am               D                  Em
Petite Mort, you took yourself, you bastard
Am               D                     G      B
Petite Mort, now sleeping's all that's left

    Em                         B
You took apart the sympathetic angle
         C/G            Am7          G      D        
When you catered to the bitterness inside
Am                    D                 Em
Aligned yourself with depths I couldn't handle
  Am            D                 G
A million daily deaths before you die

Chorus

C 
  Gathered a bouquet
           Em
Roses and posies
                    A
and straightened my tie
       C                   G               D
When I got there, you were nowhere I could find

Verse 2

        Em                      B
Through layer after layer of subconscious
  C/G          Am7           G      D
I hunted for a reason in the woods
  Am             D               Em
I tore apart the map and started backwards
  Am               D                G      B
I couldn't picture living there for good

  Em                               B
I left you there to finish setting fires
  C/G               Am7            G     D
I left you there to propagate your lie
  Am                 D            Em
I left you there cos honey, I was tired
  Am                D               G
I left you but that doesn't make it right

Chorus

C
  I remember your bedroom
          Em
Ivy and clover
              A
You kept me alive
        C                 G                D
Knives drawn, the butcher world waited outside

Outro

Em                              B
Petite Mort, I asked you for an answer
C/G            Am7            G      D
Petite Mort, I sang until you slept
Am               D                  Em
Petite Mort, you took yourself, you bastard
Am               D                     G      B
Petite Mort, now sleeping's all that's left
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