Build a series of chord progressions that fit well with the existing melody.
|: DD/D/ DD | FD/D/ DD | d2 a2 | g2 e2 | AA/A/ AA | A2 ge | d2"^(G)" d2 | 
 d4 :: Ae/f/ g/f/e/d/ | ce cA | FD FA | d/e/f/g/ af | ge/f/ g/f/e/d/ | 
 ce cA | d2"^(G)" d2 | d4 :: a2 a/b/a/g/ |"^(Bm)" f2 f2 | g2 g2 | e2 z | 
 f2 f/g/f/e/ | df df | e2 e2 | d4 :|  
X:1
L:1/8
M:2/4
K:D
|:"D" DD/D/ DD |"D" FD/D/ DD |"D" d2 a2 |"Em" g2 e2 |"A" AA/A/ AA |"A7" A2 ge |"D" d2"^(G)" d2 | 
"D" d4 ::"A7" Ae/f/ g/f/e/d/ |"A7" ce cA |"D" FD FA |"D" d/e/f/g/ af |"Em" ge/f/ g/f/e/d/ | 
"A7" ce cA |"D" d2"^(G)" d2 |"D" d4 ::"D" a2 a/b/a/g/ |"^(Bm)" f2 f2 |"Em" g2 g2 |"A7" e2 z | 
"D" f2 f/g/f/e/ |"Bm" df df |"Em" e2"A7" e2 |"D" d4 :|  