Construct chord patterns that blend well with the existing music piece.
|: dcAG F2 DF | E2 CE F2 D2 | dcAG FDFG | Add^c defe | dcAG F2 DF | 
 EDCE FE D2 | dcAG FDFG |1 Add^c d4 :|2 Add^c d2 de |: f2 fe fagf | ecgc acgc | 
 f2 fe fagf | edc_B Adde | f2 fe fagf | ecgc acge | fedf edc_B |1 
 Add^c d2 de :|2 Add^c d4 ||  
X:1
L:1/8
Q:1/2=112
M:4/4
K:Dmin
|:"Dm" dcAG F2 DF |"C" E2 CE F2 D2 |"Dm" dcAG FDFG |"Am" Add^c"C" defe |"Dm" dcAG F2 DF | 
"C" EDCE FE D2 |"Bb" dcAG FDFG |1"C" Add^c d4 :|2"C" Add^c d2 de |:"Dm" f2 fe fagf |"C" ecgc acgc | 
"Bb" f2 fe fagf |"Am" edc_B"C" Adde |"Dm" f2 fe fagf |"C" ecgc acge |"F" fedf"C" edc_B |1 
"Am" Add^c"A" d2 de :|2"Am" Add^c"A" d4 ||  