Craft a music piece according to the prescribed structure and the input theme.
X:1
L:1/8
M:4/4
K:D
['(FG) ABGA FGAB cBcA d2 (de) fedc', 'Adde f2 (ed)'  
X:1
L:1/8
M:4/4
K:D
|: (FG) | ABGA FGAB | cBcA d2 (de) | fedc AGFG | Adce d2 (FG) | ABGA FGAB | cBcA d2 (de) | 
 fedc AGEC | D2 DD D2 :: (FG) | Adde f2 (ed) | dcAG A2 (AG) | Adde f2 (ed) | dcec d2 (de) | 
 fdef defg | fdcA cdef | dfed cAGE | D2 DD D2 :|  