Compose a piece using the alphabetic notation of the assigned musical structure and the provided melodic motif.
X:1
L:1/8
M:4/4
K:C
['FEF DED', 'd cAd']  
X:1
L:1/8
M:4/4
K:C
[M:6/8][K:D] .abc FEF DED | D2 d cAG | FEF DED | A2 F GFE | FEF DED | D2 d cAG | FAF GBG | 
 A2 F GFE :: D2 d cAd | cAd cAG | F2 d cAd | A2 F GFE | D2 d cAd | fed cAG | FAF GBG | A2 F GFE :|  