Construct a musical work using the letter-based representation of the specified pattern and the given melodic subject.
X:1
L:1/8
M:2/4
K:D
['e2 dB B2']  
X:1
L:1/8
M:2/4
K:D
 Be e2 | dB B2 | Be e2 | dB B2 | Bede | dBBA | AA/A/ B2 | dB/d/ B2 | BBBB | BB e2 | dB B2 | Bede | 
 dBAA | B2 AF |]  