Construct a range of chord structures to intensify the harmonic complexity of the provided musical piece.
|: A>d f/g/f/e/ | dF A>d | cE G>B | AD F2 | A>d f/g/f/e/ | dF A>d | cA Bc | 
 d2 d2 ::[K:A] [ce]>f [ce]>f | [ce]>a [ec]2 | bb/a/ ff/g/ | ac e2 | 
 [ce]>f [ce]>f | [ce]>a [ec]2 | bb/a/ fg | a2 a2 :|  
X:1
L:1/8
M:2/4
K:D
|:"D" A>d f/g/f/e/ |"D" dF A>d |"A" cE G>B |"D" AD F2 |"D" A>d f/g/f/e/ |"D" dF A>d |"A" cA Bc | 
"D" d2 d2 ::[K:A]"A" [ce]>f [ce]>f |"A" [ce]>a [ec]2 |"E" bb/a/ ff/g/ |"A" ac e2 | 
"A" [ce]>f [ce]>f |"A" [ce]>a [ec]2 |"E" bb/a/ fg |"A" a2 a2 :|  