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
['ABcA B2 cB ABcB', 'e2 cd']  
X:1
L:1/8
M:4/4
K:A
 cB | ABcA B2 cB | ABcB BAFB | ABcA B3 f | e2 cB BAFB | ABcA B2 cB | ABcB BAFA | d3 c dfed | 
 cdBc A2 :| ef | e2 cd edcd | e2 cB BAFf | e2 cd edcA | BcBA BAFf | e2 cd edcd | e2 cB BAFA | 
 d3 c dfed | cdBc A2 :|  