Compose a musical piece in accordance with the outlined theme and structure.
X:1
L:1/4
M:4/4
K:G
['G G']  
X:1
L:1/4
M:4/4
K:G
 G G B G | F G A A | d d/c/ A F | G2 z D | G G B G | F G A A | d d c F | G2 z d | d d d c | 
 c c B A/A/ | G G F E | D2 z D/D/ | G G B B/G/ | F G A A | d d A F | G2 z B/c/ | d d/d/ d c | 
 c/c/ c B A | G G G G/E/ | D2 z D | G3/2 B/ A G | F G A (B/c/) | d (d/B/) c A | G2 z ||  