Produce a music piece that aligns with the mentioned musical structure and theme.
X:1
L:1/8
M:2/4
K:G
['GB dB/d/ gf ef AB', 'bd bd'  
X:1
L:1/8
M:2/4
K:G
|: GB dB/d/ | gf ef | AB cB/c/ | ed B/c/B/A/ | GB dB/d/ | gf ef | AB c/d/c/A/ | GF G2 :: bd bd | 
 bd b2 | ae ae | ae f/g/a | bd bd | bd b2 | ae fe/f/ | ag g2 :|  