Construct harmonious chords that enhance the provided tune.
AG | F2D2 DFAF | G2E2 E2>F2 | GFGA BGBd | ceAc dBAG | F2D2 DFAF | 
 G2E2 E2>F2 | GFGA BGEG | F2D2 D2 :: de | f2df edce | dfec dcBA | 
 GBef gfgf | edcB Acde | f2df edce | dfed dcBA | GABc dBAG | F2D2 D2 :|  
X:1
L:1/16
M:2/4
K:D
 AG |"D" F2D2 DFAF |"A7" G2E2 E2>F2 |"Em" GFGA BGBd |"A7" ceAc dBAG |"D" F2D2 DFAF | 
"A7" G2E2 E2>F2 |"Em" GFGA"A7" BGEG |"D" F2D2 D2 :: de |"D" f2df"A" edce |"D" dfec dcBA | 
"G" GBef gfgf |"A7" edcB Acde |"D" f2df"A" edce |"D" dfed dcBA |"G" GABc"A7" dBAG |"D" F2D2 D2 :|  