Construct chordal sequences to boost the harmonious coherence within the specified musical piece.
K:G] d | d2 e/f/ | g2 f | (c3 | c) z d | d2 e | f2 e | (B3 | B) z b | b2 b | c'2 b | 
 a2 e | e3 | d ^c d | b2 a | g3/2 g/ g | g z (3d/e/f/ |: g f e | d c B | 
 A3/2 d/ d | f2 d |1 c3/2 d/ d | f3/2 d/ c | B z d | g3/2 d/ e/f/ :|2 ^c2 d | b2 a | 
 g3/2 g/ g | g z z |  
X:1
L:1/4
M:3/4
K:none
[K:G] d |"G" d2 e/f/ | g2 f |"D7" (c3 | c) z d | d2 e | f2 e |"G" (B3 | B) z b | b2 b | c'2 b | 
"C" a2 e | e3 |"D7" d ^c d | b2 a |"G" g3/2 g/ g | g z (3d/e/f/ |:"G" g f e | d c B | 
"D7" A3/2 d/ d | f2 d |1 c3/2 d/ d | f3/2 d/ c |"G" B z d | g3/2 d/ e/f/ :|2 ^c2 d | b2 a | 
"G" g3/2 g/ g | g z z |]  