Compose a piece of music following the specified structure and theme.
X:1
L:1/8
M:2/4
K:G
['G B A/ B/ A/ G/ D']  
X:1
L:1/8
M:2/4
K:G
 G A d g | d A G E/ G/ | A2 c E | D A, D2 | G B A/ B/ A/ G/ | D E/ D/ B,2 | G B A/ B/ A/ G/ | 
 D E/ D/ B,2 | d B/ B/ d B | A3 B | G A d d | B A G E/ G/ | B A A D | E3/2 B/ A B | D4 |]  