Develop complementary chords that synergize with the given tune.
de |: f2 fd f2 fd | f2 fd cAec | f2 fd gfed | cABc defg :: 
 a2 af b2 ba | g2 ge a2 ag | f2 fd gfed |1 cABc defg :|2 cABc d2 ||  
X:1
L:1/8
M:4/4
K:D
 de |:"D" f2 fd f2 fd |"D" f2 fd"A" cAec |"D" f2 fd"G" gfed |"A" cABc"D" defg :: 
"D" a2 af"G" b2 ba |"G" g2 ge"A" a2 ag |"D" f2 fd"G" gfed |1"A" cABc"D" defg :|2"A" cABc"D" d2 ||  