Produce a musical work that intertwines the supplied melodic theme and the indicated alphabetical pattern.
X:1
L:1/8
M:2/2
K:A
["fS e<cc>B c>Bc<f e/ccA/ B>AB<f e<cB>A a>bc'>b", "ef/g/ ac'"]  
X:1
L:1/8
M:2/2
K:A
 fS | e<cc>B c>Bc<f | e/ccA/ B>AB<f | e<cB>A a>bc'>b | b/a/g/f/ f/e/d/c/ B>AB<"^D.S."c :: 
 ef/g/ ac' b/a/b/c'/ a>e | ef/g/ ac B>AB<c | ef/g/ ac' c'/b/d'/c'/ ba/b/ | c'>ba>c B>AB<c :|  