Design agreeable chord sequences that suit the presented tune
AG | FAA dAA | BAB dAG | FAA dfe | dBB BAG | FAA dAA | BAB def | 
 gfe dfe |1 dBB B2 A :|2 dBB g2 :| faa gbb | afe dcd | faa gbb | 
 afd e2 g | faa gbb | afe def | gfg efe |1 dBB B2 g :|2 dBB B2 B :|  
X:1
L:1/8
Q:1/8=300
M:6/8
K:D
 AG |"D" FAA dAA |"G" BAB"D" dAG | FAA dfe |"Bm" dBB BAG |"D" FAA dAA |"G" BAB"D" def | 
"Em" gfe dfe |1"Bm" dBB B2 A :|2"Bm" dBB g2 :|"D" faa"G" gbb |"D" afe dcd | faa"G" gbb | 
"D" afd e2 g |"D" faa"G" gbb |"D" afe def |"Em" gfg efe |1"Bm" dBB B2 g :|2"Bm" dBB B2 B :|  