To begin with you just pluck the C chord then slide up to a D
Then when you've played that one you play riff a..

Riff a

e|----5--------------|
B|------8--6--5------|
G|---------------5---|
D|-------------------|
A|-------------------|
E|-------------------|


Riff b

e|--------------------------------------------------|
B|---------------------------------5------------6---|
G|----5--------5h7p5--7-----5h7p5--------5h7p5------|
D|--------------------------------------------------|
A|--------------------------------------------------|
E|--------------------------------------------------|

And at the end of each sentence, you play the riff a

C                      D         (play riff a)
I was stumbling right by
C                      D
Like a wreck I came to you
C                            D
So I staggered through the night
C                         D
Seeking out your rescue blues

C                             D
Gonna burn your name right across the sky
E                             F
So I never forget what the feeling's like
C                             D
Gonna burn your name right across the sky
E                             F
So I never forget what the feeling's like

         C            Gm
I want every single soul to know
         Am                   F
That I love you for what you are
       C                    Gm                   Am         F
So I sound the bells that praise your precious heart

(play riff b)

C                   D       (play riff a)
So tomorrow will arrive
C                      D
And I burst a broken light
C                         D
And a spell will hold us back
C                  D
Shattering like glass
         C                    Gm
I want every single soul to know
        Am                    F
That I love you for what you are
       C                     Gm                  Am         F
So I sound the bells that praise your precious heart

(play riff b)

(Burn your name right across the sky

So I never forget what the feeling's like) x4

         C                    Gm
I want every single soul to know
         Am                   F
That I love you for what you are
       C                     Gm                 Am         F
So I sound the bells that praise your precious heart
         C                   Gm
I want every single soul to know
         Am                   F
That I love you for what you are
       C                    Gm                   Am        F
So I sound the bells that praise your precious heart

       C    Gm   Am   F
Gonna burn your name
       C    Gm   Am   F
Gonna burn your name