Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:4/4
K:A
['AFFF FAfe cBBB', 'e effe c2 z B BABc AFFF']  
X:1
L:1/8
M:4/4
K:A
|: c2 Bc AFFF | FAfe cBBB | c2 ec AFFF | EFAF c3 z | c2 ec AFFF | FAfe cBBB | ABce f2 ec |1 
 BABc AFFF :|2 BABc F2 AF |: B2 AF E z c2 | BA F2 f3 e | effe c2 z B | BABc AFFF | FBAF E z c2 | 
 BA F2 f3 e |1 effe a2 fe | effe EFAF :|2 effe a4- | a2 EF AFAB ||  