Produce a music piece that aligns with the mentioned musical structure and theme.
X:1
L:1/4
Q:3/4=120
M:6/4
K:G
['G2 G B/c/ d B', 'd g'  
X:1
L:1/4
Q:3/4=120
M:6/4
K:G
 D |"^N.B." G2 c B G B | A F A G2 G | B/c/ d B g2 f | g3/2 f/ e d c B | A F D G2 G | B/c/ d B G2 || 
 d | g d g g d g | g d f g d g | g d g a2 g/f/ | g3/2 f/ e d c B | A F D G2 G | B/c/ d B G2 |]  