Construct a musical work using the letter-based representation of the specified pattern and the given melodic subject.
X:1
L:1/8
M:4/4
K:A
['e2 Ac e2 ce', '', 'faec dfed']  
X:1
L:1/8
M:4/4
K:A
 e2 Ac e2 ce | dfed dBBd | e2 Ac e2 ce |1 dfed cA A2 :| dfed cAAd |: cega faec | dfed cBBd |1 
 cega faec | dfed cAAd :|2 ceae faec | dfed cA A4 ||  