Compose a piece of music that follows the specified structure and incorporates the given theme.
X:1
L:1/8
M:4/4
K:D
['FG ABAF A2 de fefa f2 ed', 'de faaf a2 ed'  
X:1
L:1/8
M:4/4
K:D
|: FG | ABAF A2 de | fefa f2 ed | B2 Bd AFED | E2 EF E2 | FG | ABAF A2 de | fefa f2 ed | 
 B2 Bd AFEF | D2 DE D2 :| de | faaf a2 ed | d2 de f2 fe | fdfa bafa | e2 ef e2 | de | faaf a2 ed | 
 dcde d2 cB | ABdB AFEF | D2 DE D2 :|  