Design harmonic structures to improve the musical piece.
|: D2 D2 ADFA | dfed BABc | dBBA dBBA | fade fe e2 | D2 D2 ADFD | dfed BABc | 
 dBBA FAdB | AFGE FD D2 :: ABde fefg | afdf gfed | (3Bcd ef gebe | gebe gfef | 
 dcde fefg | afdf gfed | (3Bcd ef gbag | fdec d2 de | fdec d2 de | fded Be e2 | 
 dBBA dBBA | FADE FE E2 | fdec d3 e | fded Be e2 | dBAB d3 e | faeg fd d2 ||  
X:1
L:1/8
M:4/4
K:D
|:"D" D2 D2 ADFA | dfed"G" BABc | dBBA dBBA |"D" fade fe e2 |"D" D2 D2 ADFD | dfed"G" BABc | 
 dBBA"D" FAdB |"A7" AFGE"D" FD D2 ::"D" ABde fefg | afdf"Em" gfed |"A7" (3Bcd ef gebe | gebe gfef | 
"D" dcde fefg | afdf"Em" gfed |"A7" (3Bcd ef gbag | fdec"D" d2 de | fdec"D" d2 de | fded"G" Be e2 | 
 dBBA dBBA |"D" FADE"A7" FE E2 |"D" fdec d3 e | fded"G" Be e2 |"G" dBAB"D" d3 e | faeg"D" fd d2 ||  