From here I would use open chords or preferably barre chords

 G  (320033 or 320003)  or (355433 barre chord)
 Am (x02210)            or (577555 barre chord)
 Em (022000)

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[Hook]

    G
The dog days are over
    G
The dog days are done
    G          Am
The horses are coming
   Em
So you better run


[Chorus]

    G
Run fast for your mother, run fast for your father
G
Run for your children, for your sisters and brothers
G                             Am
Leave all your love and your longing behind
          Em
You can't carry it with you if you want to survive

    G
The dog days are over
    G
The dog days are done
G                   Am
Can you hear the horses?
       Em            G
'Cause here they come

(silence)


[Bridge]

(quiet)

    G G            G        Am      Em
And I never wanted anything from you
       G        G                 G             Am         Em
Except for everything you had and what was left after that too, oh

(loud again)

G                 G                      G  Am Em
  Happiness hit her like a bullet in the back.....
G                           G               G              Am       Em
  Struck from a great height by someone who should know better than that


[Hook]

    G
The dog days are over
    G
The dog days are done
G                   Am
Can you hear the horses?
       Em             G
'Cause here they come

(Percussion interlude)


[Chorus]

    G
Run fast for your mother, run fast for your father
G
Run for your children, for your sisters and brothers
G                             Am
Leave all your love and your longing behind
          Em
You can't carry it with you if you want to survive

    G
The dog days are over
    G
The dog days are done
G                   Am
Can you hear the horses?
       Em
'Cause here they come


[Outro]

    G
The dog days are over
    G
The dog days are done
    G            Am
The horses are coming
   Em
So you better run

    G
The dog days are over
    G
The dog days are done
    G            Am
The horses are coming
   Em
So you better run

G