Construct chord arrangements that establish harmony for the existing musical piece.
d |: c e a2 | a/g/f/e/ a2 | c e a2 | b B B2 | c e a2 | a/g/f/e/ a2 | 
 c e B3/2 d/ | c A A :| B |: c e e d/c/ | d f f3/2 d/ | c e f/e/c/A/ | 
 c B B2 | c e e d/c/ | d f f3/2 d/ | c e B3/2 d/ | c A A :|  
X:1
L:1/4
M:2/2
K:A
 d |:"A" c e a2 | a/g/f/e/ a2 | c e a2 |"Bm" b B"E7" B2 |"A" c e a2 | a/g/f/e/ a2 | 
 c e"E7" B3/2 d/ |"A" c A A :| B |:"A" c e e d/c/ |"D" d f f3/2 d/ |"A" c e"F#m" f/e/c/A/ | 
"Bm" c B"E7" B2 |"A" c e e d/c/ |"D" d f f3/2 d/ |"A" c e"E7" B3/2 d/ |"A" c A A :|  