A great Irish traditional sung by many people like Johnny Cash, Luka Bloom Danny Boy (trad)
The Chords used in the song:
C: 
 
Cmaj7:

F:
 
Fm: 
 
G: 
 
  C Cmaj7                        F            Fm         
Oh Danny boy,    the pipes, the pipes are calling
         C         Am               D7                   G  
From glen to glen and down the mountain side
             C Cmaj7              F     Fm
The summer's gone and all the roses dying
               C   Am      Dm     G               C
'Tis you, 'tis you    must go and I must bide
G   Am     C         F               C
But come ye   back when summer's in the meadow
G  Am    Am      F          C          D7   G
Or when the valley's hushed and white with snow
            C  F               C    Am    Fm
And I'll be here in sunshine or in sha-dow
         C       Am    Dm    G        C      G7
Oh Danny boy, oh Danny boy I love you so
          C Cmaj7              F     Fm
But if he come and all the roses dying
         C    Am            G
And I am dead, as dead I well may be
                C Cmaj7  C7               F     Fm
You'll come and find the place where I am lying
              C  Am    F   G         C
And kneel and say   an Ave there for me
G  Am    C            F               C
And I shall feel, though soft you tread above me
G   Am   Am    F                                 G 
And then my grave will richer, sweeter be
G                  C          D                C    Am 
For you will bend and tell me that you lo---ve    me
            C       Am      Dm      G       C   G7
And I shall rest in peace until you come to me
            C       Am7                  C/G
And I shall rest in peace until you come to me