Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:2/2
K:A
['(3EFG AcBc AFEF Acea f2 (3efg agae', 'agae fecA']  
X:1
L:1/8
M:2/2
K:A
 (3EFG | AcBc AFEF | Acea f2 (3efg | agae fecA | BcBA F2 (3EFG | AcBc AFEF | Acea f2 (3efg | 
 agae fecA | BA (3GAB A2 :: z2 | ag (3fga gfeg | fefg fece | agae fecA | BcBA F2 (3EFG | 
 AcBc AFEF | Acea f2 (3efg | agae fecA | BA (3GAB A2 :|  