Hello everyone this is my first song I've tried to work out. Im fairly good at working 
chords and I think I've worked the chords used in this song:
Note its important what chord inversion you use most of them are quite high up the neck 
if use chords lower down it doesnt sound as nice i think. Ive tabbed em out:

Use fingerpicking

Em9 Dmaj9 A A7 A6 Gmaj9x2

Em9
In the deepest ocean,
Dmaj9
the bottom of the sea,
     A    A7 A6
Your eyes,     They
Gmaj9
turn me

Em9
Why should I stay here?
Dmaj9
Why should I....stay
A A7 A6 Gmaj9

Em9
I'll be crazy not to follow
Dmaj9
Follow where you lead
     A   A7 A6
Your eyes
Gmaj9
They turn me

Em9
Throw me on a phantom (heyyyyy now)
Dmaj9
I'll follow you till the end
  A         A7   A6
of the earth    (heyyyy now)
Gmaj9
I fall off

Em9
yeah everybody leave
Dmaj9
If you have the chance
 A    A7  A6
Then leave
Gmaj9
Its my chance

(Quiets down but I think chords are sameish with piano)

Em9
I get eaten by the worms
Dmaj9
and weird fishes
  A   A7 A6
get torn by the worms
Gmaj9
weird fishes
Dmaj9(changes A bit)
weird fishes
Bm ( leads into arpeggi)
Weird fishes

Bm C Bm A G X2 (use power chord type of thing)

Bm  C
ohh I hit the bottom
  Bm
I hit the bottom
    A
and escape
 G
escape  X2

Yeah thats pretty much it. I think they may use some more complected inversions but i 
it sounds right.
Em9
-------------|
---7---------|
--------5----|
---7---------|
---7---------|
-------------|
Dmaj9
----10-------|
-------------|(mute this string with middle finger which is on the e string)
--11---------|I think perhaps a F# may be used as the base string instead of
-------9-----|the D but both sound good I think they use F#.
----10-------|
-------------|
A             Use a open c shape on twelth fret
-------------|
--12---------|
----11-------|
--------9----|
------10-----|
-------------|
A7           Open string c7 shape on 12th fret
-------------|
--12---------|
----11-------|
--12---------|
------10-----|
-------------|
A6
-------------|
--12---------|
----11-------|
----11-------|The melody is this string as the chord goes from 7 to 6
-------10----|
-------------|
Gmaj9
-------------|
------10-----|
---------9---|
-----11------|
------10-----|(this string is really use I thinks its more the other three)
-------------|