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:3/8=120
M:6/8
K:D
['f2 e', 'a2 a']  
X:1
L:1/8
Q:3/8=120
M:6/8
K:D
 f2 e f2 e | d2 d def | g2 f g2 f | e2 e e2 f | g2 g gab | baf fga | agf e2 f | d2 d d3 :: 
 a2 a afd | b2 b b3 | g2 g gec | a2 a a3 | d2 A f2 d | a f2 c' a2 | bag fed | e2 A A3 | f2 e f2 e | 
 d2 d def | g2 f g2 f | e2 e e2 f | g2 g gab | bag fga | agf e2 f | d2 d d3 :|  