Design harmonic structures to improve the musical piece.
"^A" z2 B,/C/B,/C/ | .D2 .G2 | .E2 .G2 | DEDC | B,4 | GF E2 | DC B,2 | DEDC | 
 B,2 B,/C/B,/C/ |: .D2 .G2 | .E2 .G2 | DEDC | B,4 | .C2 .E2 | .D2 GA | BGGF | G4 | 
 B2 A/B/A/B/ | GB B2 | .A2 .G2 | F4 | ce e2 | Bd d2 | Ac c2 | 
 B2 B,/C/B,/C/ :| .D2 .G2 | .E2 .G2 | DEDC | B,4 | .C2 .E2 | .D2 GA | BGGF | 
 G4 | z4 |:[K:Gmin]"^B"[Q:1/4=192] G2 z2 | z .F.G.A | .B2 .A2 | .G2 .^F2 | 
 .G2 C2 | D2 E2 | D D2 D | D4 :: D3 C | D E3 | F3 E | D B,3 | 
 B,3 A, | B,2 C2 | D3 B, | A, G,3 | F,2 B,2 | A,2 F,2 | G, G,2 F, | 
 G,4 :|  
X:1
L:1/8
Q:1/4=96
M:2/4
K:Emin
"^A" z2 B,/C/B,/C/ |"G" .D2 .G2 |"Em" .E2"G" .G2 |"G" DEDC | B,4 | GF"Em" E2 |"G" DC B,2 | DEDC | 
 B,2 B,/C/B,/C/ |: .D2 .G2 |"Em" .E2"G" .G2 | DEDC | B,4 |"C" .C2"Em" .E2 |"G" .D2 GA | BGGF | G4 | 
"G" B2"Dm" A/B/A/B/ | GB B2 |"Dm" .A2"G" .G2 |"Bm" F4 |"C" ce"Em" e2 |"G" Bd d2 |"Am" Ac"C" c2 | 
"G" B2 B,/C/B,/C/ :|"G" .D2 .G2 |"Em" .E2"G" .G2 | DEDC | B,4 |"C" .C2"Em" .E2 | .D2 GA | BGGF | 
 G4 | z4 |:[K:Gmin]"^B"[Q:1/4=192]"Gm" G2"Dm" z2 | z .F"Gm".G.A | .B2"Dm" .A2 |"Gm" .G2"D" .^F2 | 
"Gm" .G2"Cm" C2 |"Gm" D2"Eb" E2 |"Gm" D D2 D | D4 ::"Gm" D3 C |"Eb" D E3 |"Bb" F3 E |"Gm" D B,3 | 
 B,3 A, | B,2"Cm" C2 |"Gm" D3 B, | A, G,3 |"Bb" F,2"Gm" B,2 |"Dm" A,2"Bb" F,2 |"Gm" G, G,2 F, | 
 G,4 :|  