Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
M:6/8
K:D
['DFA dcd efg B2 B Ace', 'f a2 f dcd efg B2 B']  
X:1
L:1/8
M:6/8
K:D
 BA | DFA dcd | efg B2 B | Ace Ace | dcB ABA | DFA dcd | efg B2 B | Ace Ace | d4 :: z f | 
 a2 f dcd | efg B2 B | Ace Ace | dcB A2 f | a2 f dcd | efg B2 B | Ace Ace | d4 :|  