Compose a piece by incorporating the set musical pattern in its alphabetical form along with the given melodic subject.
X:1
L:1/8
Q:1/8=360
M:12/8
K:D
['DFA B2', 'ABc aga fdf gfg efg aga fef']  
X:1
L:1/8
Q:1/8=360
M:12/8
K:D
 d3 DFA B2 A ABc | d2 f ede f2 a def | gfg faf g2 e d2 B | BAB DFA B2 A ABc :| aga fdf gfg efg | 
 aga fef e2 A A2 g | agf g2 f e/f/ge d2 B | BAB DFA B2 A A3 :|  