Produce a musical work that intertwines the supplied melodic theme and the indicated alphabetical pattern.
X:1
L:1/8
M:6/4
K:Bb
['TB4 dBfd b2 f2', '(TF2 F2)', 'TB4 dBfd b2 f2']  
X:1
L:1/8
M:6/4
K:Bb
 TB4 dBfd b2 f2 | TB4 dBdB c2 F2 | TB4 dBfd b2 f2 | gbag fedc (B2 B2) :: (TF2 F2) cAcA cAcA | 
 (TF2 F2) dBdB dBdB | (TF2 F2) cAcA cAcA | dBec gfed{d} (c2 c2) :| TB4 dBfd b2 f2 | 
 TB4 dBdB c2 F2 | TB4 dBfd b2 f2 | gbag fedc B4 :|  