Compose a piece adhering to the given musical structure and theme.
X:1
L:1/8
M:2/4
K:D
['A>F DF G3 d c>A', 'G2 B2'  
X:1
L:1/8
M:2/4
K:D
 A>F DF | G3 d | c>A Bc | d>e fd | A>F DF | G3 d | c>A Bc | d4 :: G2 B2 | d=c A2 | B=c/B/ AB/A/ | 
 GFED | G2 B2 | d>=c A2 | B=c/B/ AB | G4 :|  