Produce a music piece that aligns with the mentioned musical structure and theme.
X:1
L:1/8
M:2/4
K:G
['GB B/A/B dd B2 cc AA', 'AA A/B/c BB B/c/d dc c/B/A', 'B/B/B/B/ Bd B/B/B/B/ BG AA c/B/A'  
X:1
L:1/8
M:2/4
K:G
 GB B/A/B | dd B2 | cc AA | B/A/B/c/ dd | GB B/A/B | dd B2 | cc AA | G/B/d/B/ G2 :: AA A/B/c | 
 BB B/c/d | dc c/B/A | cB B/A/G | AA A/B/c | BB B/c/d | dc c/B/A | Bd B2 :: B/B/B/B/ Bd | 
 B/B/B/B/ BG | AA c/B/A | G/A/B/c/ d2 | B/B/B/B/ Bd | B/B/B/B/ BG | AA c/B/A | G/B/d/B/ G2 :|  