Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
Q:1/4=210
M:4/4
K:D
['A2 FA DAFA']  
X:1
L:1/8
Q:1/4=210
M:4/4
K:D
"D" A2 FA DAFA |"G" GE E2 GBdB |"D" A2 FA DAFA |"G" GBAG"D" FDDB |"D" A F3 D F3 |"G" G E3 GBdB | 
"D" A2 FA DAFA |"G" GBAG"D" FD D2 ||"D" A2 FA DAFA |"G" GE E2 GBdB |"D" A2 FA DAFA | 
"G" GBAG"D" FDDB |"D" A2 dA eA dA |"G" G E3 GBdB |"D" A2 FA DAFA |"G" GBAG"D" FD D2 |: 
"D" Addc d2 Ad | cd ef gfed |"A" (3cBA cA fAeA |"D" (3Bcd ef"D" gfeg |"D" faea faea | 
"D" fdec defg |"A" (3agf ge fdec |"G" dABG"D" FDD B :|  