Construct a range of chord structures to intensify the harmonic complexity of the provided musical piece.
A3/2 B/ A G | F A d2 | E F G (3F/G/F/ | E F G ^G | A3/2 B/ A G | F A d3/2 d/ | 
 c A G E | D2 D2 :: d3/2 e/ f d | c A A3/2 c/ | B G G/A/ B | B A A2 | 
 d3/2 e/ f d | c a a3/2 a/ | b a g e | d2 d2 :|  
X:1
L:1/4
Q:1/2=120
M:4/4
K:D
"D" A3/2 B/ A G |"D" F A d2 |"Em" E F G (3F/G/F/ |"A" E F G ^G |"D" A3/2 B/ A G |"D" F A d3/2 d/ | 
"A" c A G E |"D" D2 D2 ::"D" d3/2 e/ f d |"A" c A A3/2 c/ |"G" B G G/A/ B |"A" B A A2 | 
"D" d3/2 e/ f d |"A" c a a3/2 a/ |"G" b a g e |"D" d2"A7" d2 :|  