Construct chordal sequences to boost the harmonious coherence within the specified musical piece.
GA | B3 c3 | ded cAG | F2 D DED | FED FGA | BAB cBc | ded d2 e | 
 fed cAF | AGF G :: Bd | g3 def | g2 a bag | f3 dfg | afd cAF | 
 g3 def | g2 a bag | fed cAF | AGF G :|  
X:1
L:1/8
M:6/8
K:G
 GA |"G" B3"C" c3 |"G" ded"C" cAG |"D7" F2 D DED | FED FGA |"G" BAB"C" cBc |"G" ded d2 e | 
"D7" fed cAF | AGF"G" G :: Bd |"G" g3"D7" def |"G" g2 a bag |"D7" f3 dfg | afd cAF | 
"G" g3"D7" def |"G" g2 a bag |"D7" fed cAF | AGF"G" G :|  