Piano, but I do this on acoustic so it pretty much rocks still, for a ballad. 
 
ocultar tablatura
 
    G                  G/C (I guess) 
---------       ------- 
---0-----       ---1--- 
---0-----       ---0--- 
---0-----       ---0--- 
---2-----       ---2--- 
---3-----       ---3---
 
 
G  
      G G/C G 
G                                                D 
Moonlight eyes I see you smile, it lightens up my night 
     
     Am                     D               G 
Your smile takes all the fight, out of me 
G                                                     D 
Moonlight eyes I hear your crying, it robs me of my pride 
            Am               D                           G  
There's nothing I can hide from moonlight eyes 
       
  D                          C                     G 
I got no control you just roll me, like the sea 
                     D 
Oh moonlight eyes! 
G                                                       D 
Moonlight eyes you've grown now, I'll soon be out of touch 
          Am                  D                       G 
You'll lose that innocence that cost so much! 
G                                                         D 
And moonlight eyes, you'll find your pain say that I'm all wrong, 
           Am                D                         G 
They'll always be a place where you belong 
 
(Speed up the tempo a bit) 
       D                            C                    G 
I got no control, you just roll me like the sea 
  
                      D                          C 
Oh moonlight eyes, tell your sweet lies 
           G 
Only to me 
          D 
Only to me 
C                           D 
Moonlight eyes you sooth me 
C                         D                      G             D 
Moonlight eyes you're easy on my sooooooooooul 
 
Moonlight eyes you are the reason, the meaning to the words 
The words to every song I ever loved 
Paralysed in sweet suprise, every wrong is right 
One look into your night, oh Moonlight eyes 
I got no control you just roll me like the sea 
Oh moonlight eyes, tell your sweet lies 
Only to me 
Only to me 
Moonlight eyes! 
 
 
 
Fonte: My Tribute To Nazareth - http://www.nazareth.no/guitar_tabs/Moonlight.htm