Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/16
M:2/4
K:Bb
['BFDF Bcde fgfd B2(cd) egbg', 'gabg fdBd']  
X:1
L:1/16
M:2/4
K:Bb
 (udc) | BFDF Bcde | fgfd B2(cd) | egbg fdBd | gfdB c2(dc) | BFDF Bcde | fgfd B2(cd) | egbg fdBd | 
 c2B2B2 :: (uba) | g^fga g=fde | fgfd f2(ba) | gabg fdBd | cdcB GFDC | .vB,(uF=EF) vD(uBAB) | 
 F(d^cd) B(f=ef) | gabg fdBd | c2B2B2 :|  