Develop harmonious chord sequences to enhance the given tune.
f/g/ | a f d f | e2 A2 | F A A f | e3 f/g/ | a f d f | e2 A2 | F A A f | 
 d3 :: c/d/ | e/d/c/B/ A e | f c d B | f/g/ a b ^g | a3 e/f/ | 
 g/f/e/d/ c a | B g A f/g/ | e d e c | d3 :|  
X:1
L:1/4
Q:1/4=118
M:2/2
K:D
 f/g/ |"D" a f d f |"A" e2 A2 |"D" F A A f |"A" e3 f/g/ |"D" a f d f |"A" e2 A2 |"D" F A"A" A f | 
"D" d3 :: c/d/ |"A" e/d/c/B/ A e |"F#m" f c"Bm" d B |"Bm" f/g/ a"E" b ^g |"A" a3 e/f/ | 
"G" g/f/e/d/"A" c a |"G" B g"D" A f/g/ |"G" e d"A" e c |"D" d3 :|  