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:Bb
['fgf fdB', 'B,3 cdc afc cdc A2 A cdc']  
X:1
L:1/8
M:6/8
K:Bb
 fgf fdB | fgf fdB | gfe{e} dcB | AcA F2 f | fgf fdB | fgf fdB | gec AcA | B3 B,3 :: cdc afc | 
 cdc A2 A | cdc bfc | d3 c2 f | fgf f=e_e | efe d2 d | ceg BcA | B3 B,3 :|  