Construct harmonious chords that enhance the provided tune.
|: A | dAA BAG | FED CEA | dAA fed | cec A=Bc | d2 A BAG | FED CEA | Bdf Adf | 
 edc d2 :: B | AaA g2 f | gfd fdA | BaB g2 f | dfa ecA | AaA g2 f | 
 gfd fdA | Bdg Adf | edc d2 :: E | DAa gAB | dgf Afe | ABd FED | 
 CDB AFE | DAa gAB | dgf Afe | ABd FED | CDE D2 :|  
X:1
L:1/8
M:6/8
K:Dmin
|: A |"Dm" dAA BAG | FED CEA | dAA fed |"A" cec A=Bc |"Dm" d2 A BAG | FED CEA |"Bb" Bdf"Gm" Adf | 
"A7" edc"Dm" d2 :: B |"Dm" AaA g2 f | gfd fdA |"Gm" BaB g2 f |"A7" dfa ecA |"Dm" AaA g2 f | 
 gfd fdA |"Bb" Bdg"Gm" Adf |"A7" edc"Dm" d2 :: E |"Dm" DAa gAB | dgf Afe |"Gm" ABd FED | 
"A7" CDB AFE |"Dm" DAa gAB | dgf Afe |"Bb" ABd"Gm" FED |"A7" CDE"Dm" D2 :|  