Develop a musical composition using the outlined alphabetical depiction of the structure and the provided theme.
X:1
L:1/8
M:4/4
K:D
['D2 DE FEFA', 'd2 dc dAFA']  
X:1
L:1/8
M:4/4
K:D
 D2 DE FEFA | DFAF EDB,E | D2 DE FEFA | BdAF EGFE | D2 DE FEFA | DFAF EDB,E | D2 DE FEFA | 
 Bd AF EF D2 |: d2 dc dAFA | DFAd egfe | d2 dc dAFA | BdAF EF D2 :|  