Construct a musical work using the letter-based representation of the specified pattern and the given melodic subject.
X:1
L:1/8
Q:1/4=160
M:2/4
K:G
['', 'B dd dd d d2 d e2', '|1 B4 :|2 B2']  
X:1
L:1/8
Q:1/4=160
M:2/4
K:G
 B |: dd dd | d d2 d | e2 fe | d3 B | d2 ed | c3 A | d2 dc |1 B2 z B :|2 B2 z2 |: B>c de | e>d Bd | 
 d>c Ac | ee d2 | B>c de | e>d Bd | d>c Ac |1 B4 :|2 B2 z2 |: e2 ee | d3 d | cc cc |1 B4 :|2 
 B2 z2 ||  