Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/8
M:6/8
K:D
['e f2', 'fed e2 d efg fed Bcd ABA']  
X:1
L:1/8
M:6/8
K:D
|: ABA AFA | d2 e f2 f | g2 e f2 d | e2 d Bcd | ABA AFA | d2 e f2 g | afd efe |1 d3- d3 :|2 
 d3 def |: g3 gag | f2 f fed | e2 d efg | fed Bcd | ABA AFA | d2 e f2 g | afd efe |1 d3 def :|2 
 d3- d3 ||  