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=140
M:6/8
K:G
['dBg dBG', 'dBc dBg dBG']  
X:1
L:1/8
Q:1/4=140
M:6/8
K:G
"^NB1" d3 d3 | dBg dBG |"^NB2" c6 | cAB cBA |"^NB2" d6 | dBg dBG | EGc BcA | G3 :: d3 | dBc dBc | 
 dBg dBG | cAB cAB | cAB cBA | dBc dBc | dBg dBG | EGc BcA |"^NB2" G3 :|  