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:Emin
['e2 (dB)', 'E2 F/F/F (FE) DEFA B/B/B (BA) Bdef']  
X:1
L:1/8
M:4/4
K:Emin
|: Eeef e2 (dB) | defd eBdA | Beef e2 (dB) | ABdF E/E/E E2 :: F/F/F (FE) DEFA | B/B/B (BA) Bdef | 
 dBdA Beef | dBdF E/E/E E2 :|  