Construct a range of chord structures to intensify the harmonic complexity of the provided musical piece.
dcB A2 F | GFE FGA | dcB GFE | GFE D3 :| E2 E E2 F | GAG F2 D | 
 E2 E E2 F | GFE D3 :|  
X:1
L:1/8
M:6/8
K:D
"D" dcB A2 F |"G" GFE"D" FGA | dcB GFE |"A" GFE"D" D3 :|"Em" E2 E E2 F |"G" GAG"D" F2 D | 
"Em" E2 E E2 F |"A" GFE"D" D3 :|  