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:Eb
['z B']  
X:1
L:1/8
M:4/4
K:Eb
 EG | B2 BBBcBA | AGGG B2 AG | F2 FF c2 BA | AGGG G2 z B | BFFF B2 BB | c2 c2 d2 z B | e2 dcB>cBA | 
 G2 FF E2 |]  