Construct a musical work using the letter-based representation of the specified pattern and the given melodic subject.
X:1
L:1/8
M:3/4
K:Bb
['z/ B,B, CB, B, z', 'B, z F,F,']  
X:1
L:1/8
M:3/4
K:Bb
 z2 CC CB,/ z/ | B,B, CB, B, z | F,F, CC (CB,/) z/ | B,B, CB, B, z | F,F, CC (CB,/) z/ | 
 B,B, CB, B, z |]: F,F, FF F z | D/D/C DB, B, z | F,F, FF F z | D/D/C DB, B, z | 
 F,F, CC (CB,/) z/ | B,B, CB, B, z | F,F, CC (CB,/) z/ | B,B, CB, B, z :|  