Produce a musical work that intertwines the supplied melodic theme and the indicated alphabetical pattern.
X:1
L:1/4
M:4/4
K:Fmix
['B A']  
X:1
L:1/4
M:4/4
K:Fmix
 c | c2 B G | E2 F G | B2 G A/G/ | F3 F | B A B c/d/ | e2 c c | f f e d | c3 F | B A B c/d/ | 
 e2 c c | f f e f | c B A F | c2 B G | E2 F G/A/ | B2 G A/G/ | F3 |]  