Create a musical composition employing the given alphabetic structure and melodic theme.
X:1
L:1/8
M:9/8
K:G
['G2 A B2 c dBG', 'g3 d2 g gag fed efe gfe']  
X:1
L:1/8
M:9/8
K:G
 G2 A B2 c dBG | A2 B c2 d ecA | G2 A B2 c dBG | d2 g agf g3 :: d2 g gag fed | efe gfe d2 B | 
 cdc edc BdG | E2 E FED G3 :|  