Construct chordal sequences to boost the harmonious coherence within the specified musical piece.
"^inst" |: cddc BcdB | BccB ABcA | B2BA GABG | A2GF EFG2 | D2 G4 F2 | 
 E2>D2 DCDE | C2 z2 GFED |1 C z EF GABc :|2 C2CG, C2 z2 ||"^vocal" |] 
 [CG,]2 [EC]4 [FD]2 | [GE]4 [GE]4 | [AF]2 [AF]4 [AF]2 | [GE]2[=F^D]2 [GE]4 | 
 [GE]2 [AF]4 [BF]2 | [cE]4 [dG]4 | [cE]8- | [cE]6 z2 |: [cA]2 [dA]4 [cA]2 | [BF]4 [AF]4 | 
 [GE]2 [GE]4 [FD]2 | [EC]4 [DG,]2[CG,]2 | [DB,]2 [GD]4 [FD]2 | [EB,]4 [DB,]4 |1 [CC]8- | 
 [CC]6 z2 :|2 C4 GFED | C2CG, C2 z2 |]  
X:1
L:1/16
M:2/4
K:C
"^inst" |:"C" cddc BcdB |"Am" BccB ABcA |"Em" B2BA GABG |"G7" A2GF"C" EFG2 |"Dm" D2 G4 F2 | 
"G7" E2>D2 DCDE |"C" C2 z2 GFED |1 C z EF GABc :|2"C" C2CG, C2 z2 ||"^vocal" |] 
"C" [CG,]2 [EC]4 [FD]2 | [GE]4 [GE]4 |"F" [AF]2 [AF]4 [AF]2 |"C" [GE]2[=F^D]2 [GE]4 | 
 [GE]2 [AF]4 [BF]2 | [cE]4 [dG]4 |"C" [cE]8- | [cE]6 z2 |:"F" [cA]2 [dA]4 [cA]2 | [BF]4 [AF]4 | 
"C" [GE]2 [GE]4 [FD]2 | [EC]4 [DG,]2[CG,]2 |"G7" [DB,]2 [GD]4 [FD]2 | [EB,]4 [DB,]4 |1"C" [CC]8- | 
 [CC]6 z2 :|2"C" C4 GFED | C2CG, C2 z2 |]  