Construct chord patterns that blend well with the existing music piece.
F | D<GG>F D<GG>A | F>GA>B c/B/A/G/ F>A | D<GG>F D<GG>g | fc d/c/B/A/ | B<G G :| 
 d | g>a b<g d<gb<g | a/g/f/d/ c>=e f<ca>f | g>ab>g d<gb>g | 
 b/a/g/f/ d<^f g/g/g g>d | g>a b<g a>^f g>=e | f>d c<fA<F c<F | 
 D<GG>F D<GG>g | fc d/c/B/A/ B<G G ||  
X:1
L:1/8
M:4/4
K:Gmin
 F |"Gm" D<GG>F D<GG>A |"F" F>GA>B c/B/A/G/ F>A |"Gm" D<GG>F D<GG>g |"F" fc d/c/B/A/ |"Gm" B<G G :| 
 d |"Gm" g>a b<g"D" d<gb<g |"F" a/g/f/d/ c>=e"C" f<ca>f |"Gm" g>ab>g"Bb" d<gb>g | 
"D" b/a/g/f/ d<^f"Gm" g/g/g g>d |"Gm" g>a b<g"D" a>^f"Gm" g>=e |"F" f>d c<fA<F c<F | 
"Gm" D<GG>F D<GG>g |"F" fc d/c/B/A/"Gm" B<G G ||  