Compose a piece of music following the specified structure and theme.
X:1
L:1/8
M:6/8
K:G
['B2 G G2 B d3']  
X:1
L:1/8
M:6/8
K:G
 D | G2 GGFG | A2 D D2 D | AAAAGA | B2 G G2 B | d3 B2 D | GGGGFG | A2 D D2 D | A2 AAAA | 
 B2 G G2 B | d3 B2 |]  