Develop a musical composition using the outlined alphabetical depiction of the structure and the provided theme.
X:1
L:1/16
M:3/4
K:Gmin
['d2>(^f2 ga)gf (cA)c=e', 'B4 (BA)Bd', '(Bc)BA (G^F)AF', 'fdfa abag', 'B4 cBcd e2c2 A2c2 cB^GB B2A2']  
X:1
L:1/16
M:3/4
K:Gmin
 (D2 | G2>)(A2 Bc)BA (G^F)GA | (BA)Bc d4 B4 | d2>(^f2 ga)gf (cA)c=e | (ga)g^f (d_e)dc (Bc)BA | 
 G2>(A2 Bc)BA (G^F)GA | (BA)Bc d4 B4 | d2>(^f2 ga)gf (cA)c=e |1 (ga)g^f d6 :|2 (ga)g^f d8 || 
 d2>(^f2 ga)gf (cA)c=e |: (ga)g^f d4 B4 | (BA)Bd (fg)fd (BA)Bd | (fg)fd c4 A4 | 
 A2(BA) (GA)Bc (d_e)dc |1 (Bc)BA (G^F)AF G4- | G2>(^f2 ga)gf (cA)c=e :|2 (Bc)BA (G^F)AF G2 || 
[K:Amin]"^variant 2" z2 | A2B2 cdcB A2B2 | cBcd e4 c4 | e2^g2 a2a2 fdfa | abag efed cdcB | 
 A2B2 cdcB A2B2 | cBcd e4 c4 | e2^g2 a2a2 fdfa | abag e8 :: e2^g2 a2a2 fdfa | abag e4 c4 | 
 c2e2 g2g2 eceg | gagf d4 B4 | cBcd e2c2 A2c2 | cB^GB B2A2 A4 :|  