Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
M:2/2
K:D
['fefa- abag fef(g a3) (a b2) a2', '[DA]2 [FA][DA] ([EA]D) [FA]2']  
X:1
L:1/8
M:2/2
K:D
 fefa- abag | fef(g a3) (a | b2) a2 fdec | dBAF (E/F/E) D2 | fefa- abag | fef(g a3) (a | 
 b2) a2 fdec | dBAF (E/F/E) D2 :: [DA]2 [FA][DA] ([EA]D) [FA]2 | DFED B,2 A,2 | 
 [DA]2 [FA][DA] ([EA]D) [FA]2 | DFEF (E/F/E) D2 | [DA]2 [FA][DA] ([EA]D) [FA]2 | DFED B,2 A,2 | 
 [DA]2 [FA][DA] ([EA]D) [FA]2 | DFEF (E/F/E) D2 :|  