Construct chordal sequences to boost the harmonious coherence within the specified musical piece.
D G G B | c A A c | B d d/c/B/A/ | G g d B | D G G B | 
 c A A c | B d d/c/B/A/ | G F G2 :: G d B d | G e c e | 
 G c A c | G d B d | G g d B | c e c A | B/c/d/e/ d/c/B/A/ | G G G2 :: 
 d3/2 c/ B c | d d d B | c3/2 B/ A B | c c c A | B3/2 c/ B A | G F G g | e d c B | 
 B2 A2 :: c c/c/ c A | B B/B/ B G | c c c A | B B B G | e3 d | 
 e f g d | c/B/A/G/ B/A/G/F/ | G4 :|  
X:1
L:1/4
Q:1/4=200
M:4/4
K:G
"G" D G"Em" G B |"Am" c A"D7" A c |"G" B d"D7" d/c/B/A/ |"G" G g d B | D G"Em" G B | 
"Am" c A"D7" A c |"G" B d"D7" d/c/B/A/ |"G" G"D7" F"G" G2 ::"G" G d B d |"C" G e c e | 
"Am7" G c A c |"G" G d B d | G g d B |"C" c e c A |"D7" B/c/d/e/ d/c/B/A/ |"G" G G G2 :: 
"G" d3/2 c/ B c | d d d B |"Am" c3/2 B/ A B | c c c A |"G" B3/2 c/ B A | G F G g |"C" e d c B | 
"D" B2 A2 ::"Am" c c/c/"D7" c A |"G" B B/B/"Em" B G |"Am" c c"D7" c A |"G" B B"Em" B G |"C" e3 d | 
"D7" e f"G" g d |"Am" c/B/A/G/"D7" B/A/G/F/ |"G" G4 :|  