Tipo de gaita: Diatônica
Tom: C

The melody heard in the midi I linked to isn't  very accurate, butit's the only one I could find.  If you know the song, you won'thave any trouble playing it.  It's VERY easy.
 
   Verse 1
   -5   6  -6  -6 -6   7  -6
   Let me walk a-while a-lone

   -6 6    -5  6   -5   6    -6  6 -5
   A-mong the sac-red rocks and stones


   -5   6   -6  -6 -6    7  -6
   Let  me look in vain be-lief

   -6 6   -5  6   -5  6  -6   6 -5
   u-pon the beau-ty of each  leaf

   Verse 2
   There is gren in ev'ry glade
   The tree tops lean providing shade
   Maypoles spin in happy song
   All nature's strength around

   Verse 3
-5
And there's a horse that feels no pain
   It's iron strength to take the strain
   Children rock it to and fro
   And gaily drink its' color glow

   Chorus (except after the 5th verse)
   -5 6 -6   -6 -7 7   7 -7 -6   -6 6 -5
     Ahh        Ahh      Ahh       Ahh

   -5 6 -6   -6 -7 7    7 -7  7 -7 -6   -6 6 -5 
     Ahh        Ahh         Ahh          Ahh

   Verse 4
-5
A- bove, the sky devoid of clouds
   Thinks not to cast a thunder shroud
   Upon this place so full of joy
   A field of gold at love's employ

   Chorus

   Instrumental

   Verse 5
-5
"So, why my heavy heart?" you say?
   When tears would stain the sight so gay?
-5
My brother's dreams once here did soar 



   -6  6  -5  6   6   6    -6 6    -5  5   -4  
   Un-til he died at the hand of need-less war

   Chorus
   -5 6 -6   -6 -7 7   7 -7 -6   -6 6 -5
      Ahh        Ahh      Ahh       Ahh

   -5 6 -6   -6 -7 7   7 -7 -6   -6 6 -5
     Ahh        Ahh      Ahh       Ahh

   
   -5 6 -6   -6 -7 7   7 -7 -6   -6 6 -5
     Mmm        Mmm      Mmm       Mmm
   

   -5 6 -6   -6 -7 7   7 -7 -6   -6 6 -5
     Mmm        Mmm      Mmm       Mmm