Create music using the given musical theme and adhere to the outlined letter-based structure.
X:1
L:1/8
M:6/8
K:G
['GFG BAB', 'd gfg dBG AGE GED GBd g2']  
X:1
L:1/8
M:6/8
K:G
 GFG BAB | GAB AGE | DEG Bdg | ege dBA | GFG BAB | ded BGE | DEG Bdg | edB G2 d :: gfg dBG | 
 AGE GED | GBd g2 f | eae fed | BeB dBA | GBG AGE | DEG Bdg | edB G2 d :|  