Once Ukulele Chords

I'm not sure if all of this is 100% correct in terms of chord complexity, but it
works. So, here it is.
 
G          Dm         C
Part of me has died
G             Dm       C
Won't return 
G           Dm            C
Part of me wants to hide
G                    Dm                C
the part that's burned 
 
Em       A7
Once, once
C                       G
I knew how to talk to you 
Em       A7
Once, once
C                    G
But not anymore 
 
 
C                                         Em          A7
Hear the sirens call me home x3
C                                        Em         Em
Hear the sirens call me home 
 
G            Dm       C
Part of me has died 
G                  Dm       C
To watch it burn 
G                          Dm          C
And the heart of me has tried
G                             Dm         C
Look what it's become 
 
Em        A7
Once, once
C                         G
I knew how to look for you
Em       A7
Once, once
C                      G
But that was before 
Em       A7
Once, once
C                                               G
I would have laid down and died for you
Em       A7
Once, once
C                    G
But not anymore
 
 
C                                           Em             A7
Hear the sirens call me home x 5
C                                         Em                 Em
Hear the sirens call me home
 
G - Dm - C - G
X