Compose a piece using the alphabetic notation of the assigned musical structure and the provided melodic motif.
X:1
L:1/8
M:3/4
K:Amin
['E2 E2 ^GA B>A A3 E A^G', 'z2 B=G GB BB cA Ac cB']  
X:1
L:1/8
M:3/4
K:Amin
 E2 E2 ^GA | B>A A3 E | A^G Ac ec | cB B2 z2 :: B=G GB BB | cA Ac cB | B2 =G2 ^FF | A=G E2 z2 :|  