The Piper-Abba (B. Ulvaeus, B. Andersson)
Album: Super Trouper released in 1980
Acoustic version, or at least how I play it.  
The first 4 lines really are just a Bm.
Can you feel that in your fingers yet?

Intro: Bm

Verse 1
Bm
They came from the hills 
Bm
And they came from the valleys and the plains 
Bm
They struggled in the cold 
Bm
In the heat and the snow and in the rain 
Bm       A       Bm      A  D  A
Came to hear him play 
Bm          A     Bm     A  D  E
Play their minds away 


Chorus
A                       D      A
We're all following a strange melody 
A                        D    E
We're all summoned by a tune 
F#m                 Bm F#m
We're following the piper 
        D     E           A   E
And we dance beneath the moon 

    Break: A  D  A  D  E

F#m                 Bm F#m
We're following the piper 
        D       E         A       F#m
And we dance beneath the moon for him 
        D       E         A
And we dance beneath the moon 


Instrumental bit:  A  E  C#m F#m  E  G# C#m

   A  E  C#m F#m  E  G# C#m
    Sub   Luna    Saltamus


Verse 2
Bm
They came from the south
Bm
From the west and the north and from the east 
Bm
They waited for the man
Bm
Like a parish is waiting for the priest 
Bm         A       Bm    A  D  A
Longed to hear him play 
Bm          A     Bm   A  D  E
Play their minds away 


Chorus
A                       D      A
We're all following a strange melody 
A                        D    E
We're all summoned by a tune 
F#m                 Bm F#m
We're following the piper 
        D     E           A   E
And we dance beneath the moon 

    Break: A  D  A  D  E

F#m                 Bm F#m
We're following the piper 
        D       E         A       F#m
And we dance beneath the moon for him 
        D       E         A
And we dance beneath the moon 


Instrumental bit:  A  E  C#m F#m  E  G# C#m

   A  E  C#m F#m  E  G# C#m
    Sub   Luna    Saltamus


Verse 3
Bm
He came in a dream 
Bm
He seduced everybody in the land 
Bm
The fire in his eyes 
Bm
And the fear was a weapon in his hand 
Bm       A       Bm    A  D  A
So they let him play 
Bm          A     Bm   A  D  E
Play their minds away 

Chorus
A                       D      A
We're all following a strange melody 
A                        D   E
We're all summoned by a tune 
F#m                 Bm F#m
We're following the piper 
        D     E           A   E
And we dance beneath the moon 

    Break: A  D  A  D  E

F#m                 Bm F#m
We're following the piper 
        D       E         A       F#m
And we dance beneath the moon for him 
        D       E         A
And we dance beneath the moon
 
outro:
        D       E         A       F#m

        D       E         A
And we dance beneath the moon