Construct a range of chord structures to intensify the harmonic complexity of the provided musical piece.
BEEE E2 ed | BE (3EEE FDFA | BE (3EEE Bcdf | edBA FEFA | 
 BEEE E2 ed | BE (3EEE FDFA | BE (3EEE Bcdf edBA FE (3DEF || 
 G2 dG eGdG | G2 dB AF (3DEF | G2 dG eGdG | efdB AF (3DEF | 
 G2 dG eGdG | G2 dB AFDF | EFGA Bcdf | edBA FEFA ||  
X:1
L:1/8
M:4/4
K:Edor
"Em" BEEE"Em" E2 ed |"Em" BE (3EEE"D" FDFA |"Em" BE (3EEE"Bm" Bcdf |"Em" edBA"D" FEFA | 
"Em" BEEE"Em" E2 ed |"Em" BE (3EEE"D" FDFA |"Em" BE (3EEE"Bm" Bcdf"Em" edBA"Bm" FE (3DEF || 
"G" G2 dG"Em" eGdG |"G" G2 dB"D" AF (3DEF |"G" G2 dG"Em" eGdG |"Bm" efdB"D" AF (3DEF | 
"G" G2 dG"Em" eGdG |"G" G2 dB"D" AFDF |"Em" EFGA"Bm" Bcdf |"Em" edBA"D" FEFA ||  