Produce a musical work that intertwines the supplied melodic theme and the indicated alphabetical pattern.
X:1
L:1/16
M:2/4
K:Bb
['BABc d2d2', 'c2c2 fede f2f2 b4 g4 fede c2d2']  
X:1
L:1/16
M:2/4
K:Bb
|:"^A""_NB1" F2 | BABc d2d2 | BABc d2d2 |{f} e2de c2c2 |{f} e2de c2c2 | BABc d2d2 | BABc d2d2 | 
 fede c2d2 | B4 B2 ::"^B" de | fede f2f2 | b4 g4 |{f} e2de c2c2 |{f} e2de c2c2 | fede f2f2 | 
 b4 g4 | fede c2d2 | B4 B2 :|  