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:2/4
K:D
['d2 f/e/d/e/ fddc', 'D2 A/G/ FAAG FAAG FAdf', 'AG FAAG FAAc df g/f/e/d/']  
X:1
L:1/8
M:2/4
K:D
 d2 f/e/d/e/ | fddc | B2 e/f/e/d/ | cAAc | d2 f/e/d/e/ | fddc | Be{d}cB/c/ | d2 D2 :: A/G/ | FAAG | 
 FAAG | FAdf | dc/B/ AG || FAAG | FAAc | df g/f/e/d/ | a2"^D.C\n\n." A2 :|  