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:Edor
['B3 EFE', 'EFE E2', 'B2 c d2 e']  
X:1
L:1/8
M:6/8
K:Edor
 A | B3 EFE | BAG FED | B3 EFE | BAB dAF | B3 EFE | BAG FED | A3 D FDF | A3 AGF :: EFE E2 F | 
 DED D2 F | EFE E2 B | B3 BAF | EFE E2 F | DED DFG | A3 D FDF | A3 AGF :: B2 c d2 e | fdB AGF | 
 B2 c d2 e | f2 e fdB | B2 c d2 e | fdB AGF | DED FDF | A3 AGF :|  