Design compatible chord patterns that blend well with the existing piece of music.
|: Ad AB | =cB AG | FD ED | FG ^GA | Ad AB | =cB AG | FD EC | D4 :: FD ED | FG ^GA | 
 FD ED | (3=cB_B (3A_AG | FD ED | FG ^GA | FD EC | D4 :: FG AB | =cB AB | =cB AB | 
 =cB AG | FG AB | =cB AG | FD EC |1 D4 :|1 D2 A,2 || | D4- | D4- | D4 | 
 (3D2 E2 ^E2 | F4- | F4- | F4 | (3F2 G2 ^G2 | A4- | A4- | A4 | (3A2 B2 c2 | d4- | 
 d4- | d4- | d4 |: (3AAA"^Do" (3^GGG | (3AAA F2 | (3AAA"^Do" (3^GGG | (3AAA F2 | 
 (3AAA"^Do" (3^GGG | (3AAA (3BBB | (3AAA"^Do" (3^GGG |1 (3AAA F2 :|2 
 A2- A2 |:[K:Ddor] (3cBA (3cBA | (3Bcd (3cBA | (3GAB (3AGF | EDGA | 
 (3cBA (3cBA | (3Bcd (3cBA | (3GAB (3AGF | E D3 ::[K:D] A, D2 E | FDEF | G2 F2 | 
 ED^GA | A, D2 E | FDEF | G2 F2 | EC D2 :|  
X:1
L:1/8
M:2/4
K:D
|:"D" Ad AB | =cB AG | FD ED | FG ^GA | Ad AB | =cB AG | FD"A7" EC |"D" D4 ::"D" FD ED | FG ^GA | 
 FD ED | (3=cB_B"A7" (3A_AG |"D" FD ED | FG ^GA | FD"A7" EC |"D" D4 ::"D" FG AB | =cB AB | =cB AB | 
 =cB AG | FG AB | =cB AG | FD"A7" EC |1"D" D4 :|1"D" D2"A7" A,2 || |"D" D4- | D4- | D4 | 
 (3D2 E2 ^E2 |"D" F4- | F4- | F4 | (3F2 G2 ^G2 |"D" A4- | A4- | A4 |"A7" (3A2 B2 c2 |"D" d4- | 
 d4- | d4- | d4 |:"D" (3AAA"^Do" (3^GGG |"D" (3AAA F2 |"D" (3AAA"^Do" (3^GGG |"D" (3AAA F2 | 
"D" (3AAA"^Do" (3^GGG |"D" (3AAA"G" (3BBB |"D" (3AAA"^Do" (3^GGG |1"D" (3AAA F2 :|2 
"D" A2-"A7" A2 |:[K:Ddor]"Dm" (3cBA (3cBA | (3Bcd (3cBA | (3GAB"A7" (3AGF |"Dm" EDGA | 
 (3cBA (3cBA | (3Bcd (3cBA | (3GAB"A7" (3AGF |"Dm" E D3 ::[K:D]"D" A, D2 E | FDEF |"G" G2"D" F2 | 
"A7" ED"D"^GA |"D" A, D2 E | FDEF |"G" G2"D" F2 |"A7" EC"D" D2 :|  