Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:4/4
K:A
['Fc (3ccc', 'BAGA F2 FE FGAB- BABc BAGc BE']  
X:1
L:1/8
M:4/4
K:A
 Fc (3ccc fccc- | cABc AFFE | Fc (3ccc fccB | caga geBc | z2 cc fccc- | cABc BAGE | DEFA Bcef- | 
 faec BAGA :: F2 FE FGAB- | BABc BAGc | BE (3EEE EFGA | BABc agfe | fc (3ccc eB (3BBB | 
 cA (3AAA eAcB | AEFA Bcef- | faec BAGA :|  