Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
M:2/2
K:D
['ef gf']  
X:1
L:1/8
M:2/2
K:D
 fg |"D" af af d2 ef |"A7" gf ge c2 ef |"^(Em)" gf ed"A7" cA Bc |"D" de fg a2 fg |"D" af af d2 ef | 
"A7" gf ge c2 ef |"^(Em)" gf ed"A7" cA Bc |"D" df ec d2 :: AG |"D" FA dA FA dA |"G" GB dB GB dB | 
"A7" AB cd ef ec |"D" de fg"^(A7)" a2 A2 |"D" FA dA FA dA |"G" GB dB GB dB |"A7" AB cd ef ec | 
"D" d2 f2 d2 :|  