Produce a music piece that aligns with the mentioned musical structure and theme.
X:1
L:1/8
M:12/8
K:D
['GFG BAF A2 d cde ABc', 'gfg e2 d'  
X:1
L:1/8
M:12/8
K:D
|: AG | F2 F GFG BAF A2 d | cde ABc dcB ABG | F^EF GFG BAF A2 d | cde ABc d3- d :: fg | 
 a2 a fdf gfg e2 d | cde ABc dcB Ae/f/g | a^ga fd/e/f gfg e2 d | cc/d/e ABc d3- d :|  