Develop a musical composition in line with the given structure and theme.
X:1
L:1/8
M:6/8
K:G
['g2 f e2 d efg', 'd c2 B A2'  
X:1
L:1/8
M:6/8
K:G
 g2 f e2 d | efg d3 | c2 B A2 G | ABG FED | g2 f e2 d | efg d2 c | BGB AFA | G3 [G,G]3 :: 
 B2 c d2 =f | e2 d c2 B | A2 B c2 e | d2 c B2 A | G2 A B2 d | c2 B A2 G | FAG FED | FAG FED | 
 dBg ecg | dBg ecg | BGB AFA | G3 [G,G]3 :|  