Construct a musical work that combines the specified alphabet-based pattern with the given melodic theme.
X:1
L:1/16
M:2/2
K:Bb
['d2cB ABcd', 'B8 (de) f2B2A2B2 c6 (de) f4 f2g2', 'F2 BcdB edcB ABcd edec dBdf edcB', 'de fdcB ABAB cFGA Bcde fBdf dfeg']  
X:1
L:1/16
M:2/2
K:Bb
 F2 | B4 d2cB ABcd e2e2 | d4 c2B2 A2>B2 cBcA | (B2f2){e} d2cB ABcd e2fe | d4 Tc3{Bc}B2 B8 :: (de) | 
 f2B2A2B2 c6 (de) | f4 f2g2 (f2>g2) fedc | B3{cBAB}c2d2e2 fedc defd | e4 e2d2 cdef g2fe | 
 d4 ecdB ABcd e2fe | d4 Tc3{Bc}B2 B6 :|"^1st Var:" F2 | BcdB edcB ABcd edec | dBdf edcB AGAB cBcA | 
 B2f2 edcB Abcd egfe | dfed (Tc2>B2) B6 :: de | fdcB ABAB cFGA Bcde | fBdf dfeg (fgab) fedc | 
 (Bc/4B/4A/Bc) dcde fedc fedc2 defd | egfg efde cdef g2fe | dfbf ecdB ABcd egfe | 
 dfed (Tc2>B2) B6 :|  