Design compatible chord patterns that blend well with the existing piece of music.
B, |: E2 EB, EGBG | A2 AG AB G2 | BAAG ABcd | B3 A GFE^D || 
 E2 EB, EGBG | A2 AG AB G2 | GDDG G=FFE | E6 z4 :: 
 [BG][cA][cA][cA] [cA][BG][AF][cA] | [BG] z z2 z2 z2 | [BG][cA][cA][cA] [cA][BG][AF][cA] | 
 [BG] z z2 z2 z2 || [^G^E][AF][AF][AF] [AF][BG][cA][^c^A] | 
 [dB][cA][cA][BG] [BG][AF][AF][GE] | GDDG G=FFE | E6 z8 | z8 :|  
X:1
L:1/8
M:4/4
K:Emin
 B, |:"Em" E2 EB, EGBG |"Am" A2 AG"Em" AB G2 |"Em" BAAG"D" ABcd |"G" B3 A"B7" GFE^D || 
"Em" E2 EB, EGBG |"Am" A2 AG"Em" AB G2 |"G" GDDG"F" G=FFE |"Em" E6 z4 :: 
"D" [BG][cA][cA][cA] [cA][BG][AF][cA] |"G" [BG] z z2 z2 z2 |"D" [BG][cA][cA][cA] [cA][BG][AF][cA] | 
"G" [BG] z z2 z2 z2 ||"D" [^G^E][AF][AF][AF] [AF][BG][cA][^c^A] | 
"G" [dB][cA][cA][BG] [BG][AF][AF][GE] |"G" GDDG"F" G=FFE |"Em" E6 z8 | z8 :|  