Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
Q:1/8=160
M:6/8
K:A
['a/f/ ecA', 'cAc ece fdf e2 a/f/ ecA']  
X:1
L:1/8
Q:1/8=160
M:6/8
K:A
 a/f/ | ecA A2 c | BGE E2 a/f/ | ecA Ace | fba g2 g/f/ | ecA ABc | BGE E2 E | FGA BGE | A3 A2 :| 
 e | cAc ece | fdf e2 a/f/ | ecA ABc | BGE E2 e/d/ | cAc ece | fdf e2 a/f/ | ecA EFG | A3 A2 :|  