Create a musical composition employing the given alphabetic structure and melodic theme.
X:1
L:1/8
M:2/4
K:D
['dA BA', 'Ad dc/B/ AF']  
X:1
L:1/8
M:2/4
K:D
|: B/c/ | dA BA | dA BA | B>A B/c/d | e2- ef/e/ | df Bd | Ad FD | E>D EF | D2- D :: E | FA AB | 
 Ad dc/B/ | AF D>E | FE ED/E/ | FA A>B | Ad dc/B/ | AF EF | D2- D :|  