Develop a piece of music conforming to the stated structure and theme.
X:1
L:1/8
M:4/4
K:G
['G2 DG B2 GB dBeB dBAB d2', 'bg ageg'  
X:1
L:1/8
M:4/4
K:G
|: G2 DG B2 GB | dBeB dBAB | d2 (3Bcd efge | dBAB GEDE | G2 DG B2 GB | dBeB dBAB | d2 (3Bcd efge | 
 dBAB G4 :: dggf g2 dg | g2 bg ageg | eaag a2 ea | a2 bg ageg | dggf g2 dg | g2 bg ageg | 
 d2 (3Bcd efge | dBAB G2 :|  