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
['efgf edBd ceAc BdGB', 'gfga bgdg']  
X:1
L:1/8
M:4/4
K:C
[M:2/2][K:G] .abc D2 | (3.G.G.G BG d2 BG | efgf edBd | ceAc BdGB | ABcA GFED | (3.G.G.G BG d2 Bd | 
 efgf edBd | ceAc BdGB | cAFA G2 :: d2 | gfga bgdg | edef gdBd | gfga bgdg | edcB A2 (Bd) | 
 gfga bgdg | edef gdBG | DGBd gdBd | cAFA G2 :|  