Develop a musical composition that aligns with the given structural outline and thematic content.
X:1
L:1/8
M:6/8
K:D
['d2 c def', 'a2 a', 'g2 f efd c2 A'  
X:1
L:1/8
M:6/8
K:D
|: A | d2 c def | B2 A FGE | DED E2 E | FAA ABc | d2 c def | ABG FGE | DED DFA | GEC D2 :: f/g/ | 
 a2 a aba | fdB AFE | DED FDF | Adf efg | a2 a baf | afd BAF | DFA dfa | gec d2 :: e/f/ | 
 g2 f efd | c2 A ABA | cAc ece | ac'b aef | g2 f efd | c2 A ABc | d2 d gaf | gec d2 :|  