Develop a musical composition using the outlined alphabetical depiction of the structure and the provided theme.
X:1
L:1/8
Q:1/8=232
M:4/4
K:D
['', 'dB AF Ad BG AF DF AF']  
X:1
L:1/8
Q:1/8=232
M:4/4
K:D
 dB |: AF Ad BG AF | DF AF ED EG | FD EF GA Bd | cA Bc dc dB | AF Ad BG AF | DF AF ED EG | 
 FD EF GA Bd | cA Bc de fg | a2 fd fa fd | gf ed cd ef | g2 gf gb ag | fd ec de fg | a2 fd fa fd | 
 gf ed cd ef | g2 gf gb ag | fd ec dc dB :|  