Construct chord patterns that blend well with the existing music piece.
|: d | A A/B/A/G/ | F A D | G G/A/G/F/ | E2 d | A A/B/A/G/ | F A D | G F E | 
 D2 :| D | F F/E/F/G/ | A2 A/G/ | F F/E/F/G/ | A2 A | d d/c/d/e/ | c B A | 
 d d/f/ e/g/ | f2 e | d d/c/B/d/ | c B A | d F ^G | A2 d | A A/B/A/G/ | 
 F A D | G F E | D2 ||  
X:1
L:1/4
M:3/4
K:D
|: d |"D" A A/B/A/G/ |"Bm" F A D |"G" G G/A/G/F/ |"A" E2 d |"D" A A/B/A/G/ |"Bm" F A D |"A" G F E | 
"D" D2 :| D |"D" F F/E/F/G/ |"A" A2 A/G/ |"Bm" F F/E/F/G/ |"A" A2 A |"D" d d/c/d/e/ |"A" c B A | 
"D" d d/f/"A" e/g/ |"D" f2 e |"Bm" d d/c/B/d/ |"A" c B A |"E" d F ^G |"A" A2 d |"D" A A/B/A/G/ | 
"Bm" F A D |"A" G F E |"D" D2 ||  