Design harmonic structures to improve the musical piece.
|: D | E2 EG/A/ | BA FE | D2 DF/G/ | AF ED | E2 EG/A/ | BA FA | B/c/d/B/ AF | 
 E2 E :: A | Be ed/e/ | fe dA | Bc de | dB BA | Be ed/e/ | fe dA | 
 B/c/d/B/ AF | E2 E :|  
X:1
L:1/8
M:2/4
K:Edor
|: D |"Em" E2 EG/A/ | BA FE |"D" D2 DF/G/ | AF ED |"Em" E2 EG/A/ | BA FA |"G" B/c/d/B/"D" AF | 
"Em" E2 E :: A |"Em" Be ed/e/ | fe dA |"G" Bc de | dB BA |"Em" Be ed/e/ | fe dA | 
"G" B/c/d/B/"D" AF |"Em" E2 E :|  