Construct chord patterns that blend well with the existing music piece.
z A A3/2 B/ | d d d z | A A/A/ A B | d/ d3/2 d z | z/ e e/ e e | e2 d e | f d d d | 
 B d2 z | A A/A/ A B | d d/d/ d z/ d/ | A A A B | d d d z | z e e/e/- e | e e e e/e/ | 
 f d d d | B d d B | A/A/ A A F | A2 z f/f/ | f f e f | g e d c | d4- | d4 ||  
X:1
L:1/4
Q:1/4=100
M:4/4
K:D
"D" z A A3/2 B/ | d d d z | A A/A/ A B | d/ d3/2 d z |"A" z/ e e/ e e | e2 d e |"G" f d d d | 
 B d2 z |"D" A A/A/ A B | d d/d/ d z/ d/ | A A A B | d d d z |"A" z e e/e/- e | e e e e/e/ | 
"G" f d d d | B d d B |"D" A/A/ A A F | A2 z f/f/ | f f e f |"A" g e d c |"D" d4- | d4 ||  