Craft a music piece according to the prescribed structure and the input theme.
X:1
L:1/8
Q:1/4=140
M:4/4
K:G
['BGdB gdBd cAaf gedc', 'G2 Bc dcBA GBdg e2 c2 c2'  
X:1
L:1/8
Q:1/4=140
M:4/4
K:G
 GA | BGdB gdBd | cAaf gedc | BGdB gdcB | AGFE DFAc | BGdB gdBd | cAaf gedc | BdGB AcFA | 
 G2 G2 G2 :: Bc | dcBA GBdg | e2 c2 c2 z2 | ecBc Acea | f2 d2 d2 z2 | BGDG BGdG | AFDF AFcA | 
 BGdG cAGF | G2 G2 G2 :|  