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
['fe d2 eAAB', 'd2 eA A2']  
X:1
L:1/8
M:4/4
K:D
 g | fe d2 eAAB | dedB B2 Gg | fe d2 eAAB | dedB AAA :| B | d2 eA A2 eA | fAed B2 GB | 
 d2 eA A2 ef | gedB AAA :|  