Build a series of chord progressions that fit well with the existing melody.
|: F G A | A3 | F G A | A3 | B A G | F2 E | D E D | F D D :: E F G | E F G | 
 E F G | E F G | A G F | E2 D | D E D | F D D :|  
X:1
L:1/4
M:3/4
K:D
|:"D" F G A | A3 |"D" F G A | A3 |"G" B A G |"D" F2 E |"G" D E D |"D" F D D ::"A" E F G | E F G | 
"A" E F G | E F G |"D" A G F | E2 D |"G" D E D |"D" F D D :|  