Construct chordal sequences to boost the harmonious coherence within the specified musical piece.
|: B B A2 | B B A2 | B B A F | F E D2 :|  
X:1
L:1/4
M:4/4
K:D
|:"G" B B"D" A2 |"G" B B"D" A2 |"G" B B"D" A F | F"A" E"D" D2 :|  