Develop a musical composition using the outlined alphabetical depiction of the structure and the provided theme.
X:1
L:1/8
M:2/4
K:A
['A>A AE Ac BA', 'e>e ec Ac']  
X:1
L:1/8
M:2/4
K:A
 A>A AE | Ac BA | B>B Bc | df ec | A>A AE | Ac BA | B>c df | e/f/e/c/ A2 :: e>e ec | Ac e=g | 
 f>f fd | Ad fa | e>e ec | Ac ec | B>c df | e/f/e/c/ A2 :|  