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:A
['a2 (ec) defg afec', 'c2 cA']  
X:1
L:1/8
M:4/4
K:A
 g | a2 (ec) defg | afec dBBg | a2 (ec) defg | afec (3AAA Ag | a2 (ec) defg | afec dBBc | 
 Ac (3efg (ab)af | edBd cA A || B | c2 cA d2 dB | efec dBBd | c2 cA defg | afed cAAB | 
 c2 cA d2 dB | efec dBBd | Ac (3efg (ab)af | ecBd cA A ||  