Starting in D really throws me off in this song. The melody follows G Bm C D with the D carrying over to the start of the next verse.

  G       C  Em  F  G
If I had a hammer
G                 C  Em  F  G
I'd hammer in the morning
G                 C  Em  F  G
I'd hammer in the evening
G
all over this land
 
G              C
I'd hammer out danger
C                Am
I'd hammer out a warning
Am             F    C          F               C
I'd hammer out love between my brothers and my sisters
C F C         C  Em  F  G  (x2)
All over this land
 

If I had a bell
I'd ring it in the morning
I'd ring it in the evening
All over this land

I'd ring out danger
I'd ring out a warning
I'd ring out love between my brothers and my sisters
All over this land
 
If I had a song
I'd sing it in the morning
I'd sing it in the evening
all over this land

I'd sing out danger
I'd sing out a warning
I'd sing out love between my brothers and my sisters
All over this land
 
Well, I got a hammer
And I got a bell
And I got a song to sing
all over this land
 
It's the hammer of justice
It's the bell of freedom
It's the song about love between my brothers and my sisters
All over this land
 
It's the hammer of justice
It's the bell of freedom
It's the song about love between my brothers and my sisters
All over this land