Produce a music piece that aligns with the mentioned musical structure and theme.
X:1
L:1/8
M:4/4
K:G
['', 'B2 AG', 'dc BAGB A2 Bc :|2 dgfg decd'  
X:1
L:1/8
M:4/4
K:G
 dcS |: B2 AG EDB,C | D2 GA BGDd | B2 AG EDB,B | cAdF |1 E2 dc :|2 G2 Bc |: defd g2 dc | 
 BABd e2 fg |1 d2 gd c2 dc | BAGB A2 Bc :|2 dgfg decd | BcAF G2 dSc ||  