Produce a musical work that intertwines the supplied melodic theme and the indicated alphabetical pattern.
X:1
L:1/4
Q:1/2=100
M:3/2
K:D
['B A', 'D F A2 d B G A']  
X:1
L:1/4
Q:1/2=100
M:3/2
K:D
 a3/2 b/ a f e d | e3/2 f/ e c B A | d3/2 e/ d B A F | E3 A F D || F A2 d B G | A F2 d E D | 
 F A2 d B G | A F2 f e d |]  