Construct a range of chord structures to intensify the harmonic complexity of the provided musical piece.
|:"^A" E | EAA ABc | Bee e2 d | cBA ABc | B^GE E2 E | EAA ABc | Bee e2 d | 
 cBA B^GE | A3- A2 ::"^B" B | c2 c cdc | Bdg g2 ^g | aed cBA | 
 ^GBG E^FG | A^GA BAB | cde fed | cBA EA^G | A3- A2 :|  
X:1
L:1/8
Q:3/8=120
M:6/8
K:Amin
|:"^A" E |"Am" EAA ABc |"E7" Bee e2 d |"Am" cBA ABc |"E7" B^GE E2 E |"Am" EAA ABc |"E7" Bee e2 d | 
"Am" cBA"E7" B^GE |"Am" A3- A2 ::"^B" B |"C" c2 c cdc |"G" Bdg g2 ^g |"Am" aed cBA | 
"E7" ^GBG E^FG |"Am" A^GA"E7" BAB |"Am" cde"Dm" fed |"Am" cBA"E7" EA^G |"Am" A3- A2 :|  