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:C
['BAF ADD', 'def d2']  
X:1
L:1/8
M:4/4
K:C
 BEA ue2003 |[M:6/8][K:D]SOSOO .!fermata!PMTCOMA | BAF ADD | FEF DFA | BAF ADD | FEE EFA | 
 BAF ADD | FEF DFA | dcB AFE | FDD D2 :: A | def d2 B | ABA AFD | def d2 f | ede fdB | def edB | 
 AFA ABc | dcB AFE | FDD D2 :|  