Create a musical composition employing the given alphabetic structure and melodic theme.
X:1
L:1/8
M:4/4
K:A
['cBAF A3 B', 'fb b2 fbaf b2 fb afef']  
X:1
L:1/8
M:4/4
K:A
|: c3 e cBAF | A3 B AFEA | EFAB cBAB | c2 ec cB B2 | c2 Be cBAF | A3 B AF E2 | a2 ga faec | 
 EFAB cA A2 :: fb b2 fbaf | b2 fb afef | afec ABce | f/g/aec cB B2 | fb b2 fbaf | b2 fb afef | 
 a2 ga faec | EFAB cA A2 :|  