Construct chordal sequences to boost the harmonious coherence within the specified musical piece.
AB | cded cAGE | G2 GE G2 cd | ecgc acgc | eaag (3efg ed | cded cAGE | 
 GE (3EDE G2 cd | eaag (3efg ed | cABG A2 :: AB | cdef g2 eg | 
 g2{a} gd BGGB | cdef g2 fg | eaag a3 B | cdef g2 ge | a2 af g2 ge | 
 f2 fd (3efg ed | cABG A2 :|  
X:1
L:1/8
Q:1/4=210
M:4/4
K:G
 AB |"Am" cded cAGE |"G" G2 GE G2 cd |"Em" ecgc acgc |"Am" eaag"Em" (3efg ed |"Am" cded cAGE | 
"G" GE (3EDE G2 cd |"Am" eaag (3efg ed |"C" cABG"Am" A2 :: AB |"Am" cdef"G" g2 eg | 
"Em" g2{a} gd"G" BGGB |"G" cdef g2 fg |"Am" eaag a3 B |"Am" cdef"G" g2 ge |"Am" a2 af"G" g2 ge | 
"D" f2 fd (3efg ed |"G" cABG"Am" A2 :|  