Intro (mainly pick the B string, use the e string for a fuller sound)
e----0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-/0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0—0-0-0-0
B---8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-/1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-6-6-6-3---6-6-6-3

Bass: A---0-5-5---0-5-5---0-5-5---0-5-5-
X4 each verse line

Verse 1:
What needs must be
I realised
I'm walking out
From blackened skies
You say belief
Is in our eyes
But how can I believe
In blind lies

Chorus:
e------9-----9-----9----9-9-9------7----7----7----7-7-7
B---9-----9-----9-----9-9-9-9—7----7----7----7-7-7-7
I'm counting on your heavy heart
e------------5----5----5---5-5-5------7----7----7----7-7-7
B---------5----5----5----5-5-5-5—7----7----7----7-7-7-7
Could it keep me from falling apart

e----7-7-7-7----2-2-2-2--
B---7-7-7-9----5-5-5-2--

Each line in Verse 2 starts with e--2-2-2-2--
B--5-5-5-2--
Follow with the bass line (the riff and 3X the bass bit each line sounds right)

Verse 2:
Have we been born to follow
Tied to a bitter rein
Or will we begin to grow
Bound by this simple chain
Will we evolve tonight
Sparkle like brittle stars
Can we dissolve tonight
Held by your hungry arms

Chorus:
I'm counting
On your heavy heart
Could it keep me
From falling apart

(let ´chords` ring to imitate the string section)
e—0----0----0------0----0-----0--
B—7----9----5------7---11----9--
G—7----9----5------7---11----9--
D—7----9----5------7---11----9--
A—7----9----5------7---11----9--
E—0----0----0------0----0-----0--

Bridge:
(Vary,fiddle and play with the chords in the bridge)
C#
I would be ready
A
Ready to go
C
Was your heart heavy
D
Heavy with sorrow
C
Had you been heavy
C A
We could have both been grown
e-0----0------0-----0--0----0--0--0-0-0--
B-5---4------2-----0--2----5--4--2-0-2--
G-4---3------1-----0--1----4--3--1-0-1--
Now your hearts heavy
e-0---0--0--0--0--0--0-0-0--
B-5--4--5--4--5--4--2-0-2--
G-4--3--4--3--4--3--1-0-1--
Heavy with sorrow

Chorus:
I'm counting
On your heavy heart
Could it keep me
From falling apart

Bass line X4

Bass line X4 each verse line
Verse 3:
What needs have been
You'll realize
I've found myself
In bluer skies
I know belief
Is in your eyes
We can't believe
In blind light

Chorus:
I'm counting
On your heavy heart
To keep me
From falling apart

(as before, let the chords ring for the outro)
e—0----0----0------0----0-----0------0----0----0--
B—7----9----5------7---11----9------7---11----9--
G—7----9----5------7---11----9------7---11----9--
D—7----9----5------7---11----9------7---11----9--
A—7----9----5------7---11----9------7---11----9--
E—0----0----0------0----0-----0------0----0----0--