Construct chord patterns that blend well with the existing music piece.
B2 c | dBB eBB | dBG GFG | ADD DEF | G2 A B2 c | dBB eBB | dBG GFG | 
 ADD DEF |1 G3 :|2 G3 G2 z |:[K:D] A^GA dcd | A^GA dcd | cde edc | dcB AFD | 
 DFA dcd | DFA dcd | cde edc | [df]3 d2 A | Add dcd | Add dcd | cde edc | 
 dcB AFD | DFA dcd | DFA dcd | cde edc | d3 |]  
X:1
L:1/8
M:6/8
K:G
 B2 c |"G" dBB"C" eBB |"G" dBG GFG |"D" ADD DEF |"G" G2 A B2 c |"G" dBB"C" eBB |"G" dBG GFG | 
"D" ADD DEF |1"G" G3 :|2"G" G3 G2 z |:[K:D]"D" A^GA dcd |"D" A^GA dcd |"A" cde edc |"A" dcB AFD | 
"D" DFA dcd |"D" DFA dcd |"A" cde edc |"D" [df]3 d2 A |"D" Add dcd |"D" Add dcd |"A" cde edc | 
"A" dcB AFD |"D" DFA dcd |"D" DFA dcd |"A" cde edc |"D" d3 |]  