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 GA', 'e2 B2']  
X:1
L:1/8
M:4/4
K:Emin
|: D | E2 GA F2 E2 | G2 A2 B4 | B2 Bc A2 e2 | dedc B/c/d GF | E2 GA B2 E2 | GFGA B3 d | 
 B2 Bc BAGA | F2 GF E3 ::[K:Edor] B | e>fgf e2 B2 | d2 c2 B4 | EFGA B2 e2 | dedc B/c/d Gd | 
 e2 gf e2 B2 | dedc B3 d | EFGA BcdF | G2 F/G/F E3 :|  