Construct a range of chord structures to intensify the harmonic complexity of the provided musical piece.
EAAA A2AB | cBAB cBAG | EGGG G2G2 | EGGG G2G2 | EAAA A2AB | cBAB c2cd | edef gfed | 
 c2A2 A2 :: e2a2 e2a2 | edef gfed | B2g2 B2g2 | BABc d2 z2 | e2a2 e2a2 | 
 edef g2d2 | edef gfed | e2A2 A2 z2 :|  
X:1
L:1/16
M:2/4
K:G
"Am" EAAA A2AB | cBAB cBAG |"Em" EGGG G2G2 | EGGG G2G2 |"Am" EAAA A2AB | cBAB c2cd | edef"G" gfed | 
"Am" c2A2 A2 ::"Am" e2a2 e2a2 | edef"G" gfed | B2g2 B2g2 | BABc d2 z2 |"Am" e2a2 e2a2 | 
 edef"G" g2d2 |"Am" edef"G" gfed |"Am" e2A2 A2 z2 :|  