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:4/4
K:D
['d2 Ad', 'afdf adfa']  
X:1
L:1/8
M:4/4
K:D
 d2 Ad FdAd | d2 fd cdec | d2 Ad Fdef | gbag fdec | d2 Ad FdAd | d2 fd cdec | d2 Ad Fdef | 
 gbag fddb || a3 b afdf | adfa ge e2 | faab afdf | gfeg fddb | a2 ab afdf | adfa geef | 
 g2 gf gfed | cbag fgec ||  