Create a musical composition employing the given alphabetic structure and melodic theme.
X:1
L:1/8
M:none
K:G
['DDG G2 GGGe d2 BBB/B/B/B/ cBAGFA G2']  
X:1
L:1/8
M:none
K:G
 DDG | G2 GGGe | d2 BBB/B/B/B/ | cBAGFA | G2 z2 Bc | A2 ABcd | A2 z d | d2 d2 dd | e2 dc | 
 B2 A2 G2 |]  