Compose a chordal backing that synchronizes seamlessly with the existing melody.
DEFD B,2 B,2 | A,2 A,2 D2 D2 | E2 E2 F2 F2 | EFED B,2 A,2 | DEFD B,2 B,2 | 
 A,2 A,2 D2 (3ABc | dcdA B2 AG |1 FD E2 D4 :|2 FD E2 D2 |: fg | 
 agfa gfeg | fedf edBA | dcdf edeg | fefd e2 fg | agfa gfeg | 
 fedf edBA | dcdA BdAG | FDEF D2 :|  
X:1
L:1/8
Q:1/4=180
M:4/4
K:D
"D" DEFD"G" B,2 B,2 |"D" A,2 A,2 D2 D2 |"A" E2 E2"D" F2 F2 |"A" EFED B,2 A,2 |"D" DEFD"G" B,2 B,2 | 
"D" A,2 A,2 D2 (3ABc | dcdA"G" B2 AG |1"A7" FD E2"D" D4 :|2"A7" FD E2"D" D2 |: fg | 
"D" agfa"A" gfeg |"D" fedf"A" edBA |"D" dcdf"A" edeg |"D" fefd"A" e2 fg |"D" agfa"A" gfeg | 
"D" fedf"A" edBA |"D" dcdA"G" BdAG |"A7" FDEF"D" D2 :|  