Create a musical composition employing the given alphabetic structure and melodic theme.
X:1
L:1/8
Q:1/2=80
M:2/2
K:G
['deBg A2', 'G,2 DEGA BG ce dBAG BGEG DEGA']  
X:1
L:1/8
Q:1/2=80
M:2/2
K:G
 deBg A2 Ac | BGdG BAAB | deBg A2 AB | GEDB, G,2 G,2 :: DEGA BG ce | dBAG BGEG | DEGA BGAB | 
 GEDB, G,2 G,2 :|  