Compose melodious music utilizing the prescribed letter representation and integrating the given thematic element.
X:1
L:1/8
M:2/4
K:A
['ce df ec BA', 'a2 ec']  
X:1
L:1/8
M:2/4
K:A
 e | ce df | ec BA | Aa ec | BB Be | ce df | ec BA | ce Be | cA A :: e | a2 ec | a2 ec | Aa ec | 
 BB Be | a2 ec | a2 ec | ce Be | cA A :|  