Compose a piece using the alphabetic notation of the assigned musical structure and the provided melodic motif.
X:1
L:1/8
M:2/4
K:C
['AG EC', 'fd BG']  
X:1
L:1/8
M:2/4
K:C
|: C>E GE | AG EC | cB cG | AG EC | B,>D GD | BG dc | Bd gd | ec GE | C>E GE | AG EC | cB cG | 
 AG EC | B,>D GB, | CE Gc | dG AB | c2 c2 :: G>B dB | fd BG | ce ag | fd BG | F>A cA | fe dc | 
 dc AF | AG FD | C>E GE | AG EC | cB cG | AG EC | B,>D GB, | CE Gc | dG AB | c2 c2 :|  