Create a musical composition employing the given alphabetic structure and melodic theme.
X:1
L:1/8
M:2/2
K:G
['DE DGBd cAFA', 'Bc dcde dcBc dgfg', 'Bc dBGB dbfg ecAc']  
X:1
L:1/8
M:2/2
K:G
 DE | DGBd cAFA | Ggfg edBc | DGGB cBcB | (3ABA (3GFE D2 DE | DGBd cAFA | dgfg edcB | edcB dcBA | 
 G2 B2 G2 :: Bc | dcde dcBc | dgfg edBc | dcde dBGB | (3ABA (3GFE D2 Bc | dcde dcBc | dgfg edBg | 
 bagf afdf | g2 b2 g2 :: Bc | dBGB dbfg | ecAc efge | afdf bgfg | (3aba (3gfe d2 Bc | dBGB dbfg | 
 ecAc efga | bagf agfd | g2 b2 g2 :|  