Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/16
M:3/4
K:Amin
['e2>f2 e2>f2', '(a2f2) f2f2 a4 gfed cdef g4']  
X:1
L:1/16
M:3/4
K:Amin
 d2>^c2 d2>e2 f2>d2 | e2>f2 e2>f2 e2>f2 | d2d^c d2e2 f2d2 | ed^cB A4 A4 :: (a2f2) f2f2 a4 | 
 gfed cdef g4 | (a2f2) f2f2 a4 | gfed cdef g4 | a2gf g2fe f2ed | e2d^c d4 [Dd]4 :|  