Craft a musical work based on the specified structure and given theme.
X:1
L:1/4
M:4/4
K:G
['D/G/ B/A/ G G', 'B/c/ d B B', 'G G B d f g e'  
X:1
L:1/4
M:4/4
K:G
 D/G/ B/A/ G G | D/G/ B/A/ G G | E/A/ c/B/ A A/G/ | F E/F/ G :: B/c/ | d B B B/c/ | d B B A/B/ | 
 c c/B/ A A/G/ | F E/F/ G :: G B d f | g e e d | c c B G | A F G2 :|  