Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:2/2
K:A
['AF EFAB', 'A2 c efec eAAc efec BABc efec', 'c2 cB', 'A2 c efec eAAc efec BABc efec']  
X:1
L:1/8
M:2/2
K:A
 AF | EFAB c2 cf | ecBA F2 AF | EFAB cBcf | ecBc A2 :: c | efec eAAc | efec BABc | efec efaf | 
 ecBc A3 :: AF | EFAB c2 cB | c2 cB ce f2 | EFAB cBcf | ecBc A2 :: c | efec eAAc | efec BABc | 
 efec efaf | ecBc A/A/A A :|  