Design harmonic structures to improve the musical piece.
AG |: FAAB AFED | FAAB A2 de | fBBA Bcde | f2 gf edBA | FAAB AFED | FAAB A2 de | 
 fBBA BcdB |1 AFEF D2 AG :|2 AFEF D3 e |: fgag fdde | fdad fd d2 | 
 efga beef | gebe ge e2 | faaf bfaf | defd e2 de | fBBA BcdB |1 AFEF D3 e :|2 
 AFEF D2 |]  
X:1
L:1/8
Q:1/8=220
M:4/4
K:D
 AG |:"D" FAAB AFED | FAAB A2 de |"G" fBBA Bcde |"D" f2 gf"A" edBA |"D" FAAB AFED | FAAB A2 de | 
"G" fBBA BcdB |1"A" AFEF"D" D2 AG :|2"A" AFEF"D" D3 e |:"D" fgag fdde | fdad fd d2 | 
"Em" efga beef | gebe ge e2 |"D" faaf bfaf | defd e2 de |"G" fBBA BcdB |1"A" AFEF"D" D3 e :|2 
"A" AFEF"D" D2 |]  