Create a musical composition employing the given alphabetic structure and melodic theme.
X:1
L:1/8
M:4/4
K:G
['ga bddb ageg dedB AGAB', 'G2 GA BDDB AG (3EFG DEGB AGEG']  
X:1
L:1/8
M:4/4
K:G
 ga | bddb ageg | dedB AGAB | Ggab aged | eaag a2 ga | bddb ageg | dedB AGAB | GAGE DEGB | 
 AGAB G2 :| GA | BDDB AG (3EFG | DEGB AGEG | (3BAG AG ABGd | eAAG A2 dc | BDDB AGEG | DEGB AGAB | 
 Ggab ageg | dggf g2 :|  