Compose a piece of music using the specified letter-based musical form and incorporating the assigned motif.
X:1
L:1/8
M:4/4
K:A
['a2 aa fecd efec BAFE ABAF EFAB', 'BAFE ABAF EFAB']  
X:1
L:1/8
M:4/4
K:A
|: a2 aa fecd | efec BAFE | ABAF EFAB | cBcd e4 | a2 aa fecd | efec BAFE | ABAF EFAB | cA B2 A4 :: 
 A2 AB AFEF | cAcA BAFE | ABAF EFAB | cBcd e2 A2 | d2 fd c2 ec | BABc BAFE | ABAF EFAB | 
 cA B2 A4 :|  