Construct a musical work using the letter-based representation of the specified pattern and the given melodic subject.
X:1
L:1/8
M:6/8
K:A
['cBA def efg']  
X:1
L:1/8
M:6/8
K:A
|: EAA cBA | def efg | acc cBA | dBB B2 d | cBA def | efg aec | dBe cAe | BcB A3 :|  