Compose a piece of music following the specified structure and theme.
X:1
L:1/8
M:6/8
K:G
['G B2']  
X:1
L:1/8
M:6/8
K:G
 G | B2 Bd>dB/B/ | c2 c d3 | c2 A d2 c | B2 B B2 G | B2 Bd>dB | c2 d f2 f/f/ | a2 f/f/ f2 c | 
 b2 g d2 B | c2 df>dc | B3 z2 |]  