Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
M:2/4
K:A
['f3 f- f2', 'f- f2 e2']  
X:1
L:1/8
M:2/4
K:A
|:"A" e3 e |"D" fe d2 |"A" e2 e=g |"D" fe d2 |"A" e3 e |"D" fefg |"A" a2 af |"E" efed |"A" cB A2 :: 
"A" a3 a- | a2 g2 |"D" f3 f- | f2 g2 |"A" a3 a- | a2 f2 |"E" efed |"A" cB A2 :|"D" f3 f- | f2 e2 | 
"E" B3 B- | B2 e2 |"D" f3 f- | f2 e2 |"E" BABc |"A" BAce |"D" f3 f- | f2 e2 |"E" B3 B- | B2 e2 | 
"D" f3 f- | f2 e2 |"E" BABc |"A" A4 |]  