Аккорды American Authors - Lights

Standard Tuning
Capo 4

I’m just on a tabbing spree today, so here you go. I wanted to find the chords to 
this, couldn’t, and so I just did them myself. It’s incredibly easy.

There are two guitars, but I can’t figure out what the second one is doing during 
the chorus. The guitar that you hear all by itself at the beginning is doing this:

e|----------------|
B|----------------|
G|4-6---4-6---4-6-|
D|----------------|
A|----------------|
E|----------------| and just do this until your fingers fall off, I guess. 

Now, here’s the song.

Chords:
Am    |x02210|
C     |332010|
Fmaj7 |x33210|

        Am         C
I had a way then 
              Fmaj7
losing it all on my own 
        Am            C
I had a heart then 
        Fmaj7                                                
but the queen has been overthrown 
    Am                 C                                   
And I'm not sleeping now 
    Fmaj7                                                    
the dark is too hard to beat
    Am              C       Fmaj7                              
And I'm not keeping now the strength I need to push me 
             Am                  C                         
You show the lights that stop me turn to stone 
    Fmaj7                                                    
You shine It when I'm alone
         Am               C                                
And so I tell myself that I'll be strong 
    Fmaj7                                                    
And dreaming when they're gone 
               Am                                        
'Cause they're calling, calling, calling me home 
C                                                        
Calling, calling, calling home 
             Am                  C                         
You show the lights that stop me turn to stone 
    Fmaj7                                                    
You shine it when I'm alone