Compose a piece by incorporating the set musical pattern in its alphabetical form along with the given melodic subject.
X:1
L:1/8
M:12/8
K:D
['f2 b', 'dBA F2 E DFA']  
X:1
L:1/8
M:12/8
K:D
|: A2 F DFA B2 A d2 e | f2 b afb afd e2 f | A2 F DFA B2 A d2 e |1 f2 b afd edB dcB :|2 
 f2 b afd edB def |: a2 a afd ede fdB | efe edf edf efg | a2 a afd ede f2 e |1 dBA F2 E DFA def :|2 
 dBA F2 E DFA dcB ||  