Compose a piece adhering to the given musical structure and theme.
X:1
L:1/4
Q:1/4=180
M:4/4
K:G
['B d']  
X:1
L:1/4
Q:1/4=180
M:4/4
K:G
|: G3/2 G/ B d | g2 B2 | c3/2 e/ d c | B2 G B | d d e/d/ c | A2 F A | c c B A |1 B2 G D :|  