Develop a musical composition using the outlined alphabetical depiction of the structure and the provided theme.
X:1
L:1/8
M:6/8
K:G
['d BEE EFA BAB d2 B', 'efe edB efg']  
X:1
L:1/8
M:6/8
K:G
 d | BEE EFA | BAB d2 B | AFD DED | FAA A2 d | BEE EFA | BAB d2 B | AFd AFD | EFE E2 :: d | 
 efe edB efg f2 e | ded dAF | ABA ABd | efe edB | efg faf | edB AFD | EFE E2 :|  