Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
M:12/8
K:A
['f e2 c A2 B', 'cec BcB A3']  
X:1
L:1/8
M:12/8
K:A
|: B | c2 e e2 f e2 c A2 B | c2 f fec B3 BAB | c2 e e2 f e2 c A2 B |1 cec BcB A3 A2 :|2 
 cec BcB A3 Bce |: a2 a g2 f e2 c A2 B | c2 f fec B3 Bce | a2 a g2 f e2 c A2 B |1 
 cec BcB A3 Bce :|2 cec BcB A3 A2 ||  