Assemble an assortment of chord duos that intensify the harmonious features of the given musical masterpiece.
|: ed | c2 A2 ABAF | EFAB c2 BA | d2 B2 BcBA | Bcde f2 ed | c2 A2 ABAF | EFAB c2 BA | 
 Bcde fefa | edcB A2 :: ed | cAeA fAeA | cAeA fedc | dBfB gBfB | 
 d2 f2 gfed | cAeA fAeA | cAeA fedc | Bcde fefa | edcB A2 :|  
X:1
L:1/8
M:4/4
K:A
|: ed |"A" c2 A2 ABAF | EFAB c2 BA |"E" d2 B2 BcBA | Bcde f2 ed |"A" c2 A2 ABAF | EFAB c2 BA | 
"D" Bcde"Bm" fefa |"E7" edcB"A" A2 :: ed |"A" cAeA fAeA | cAeA fedc |"Bm" dBfB gBfB | 
 d2 f2"E7" gfed |"A" cAeA fAeA | cAeA fedc |"D" Bcde"Bm" fefa |"E7" edcB"A" A2 :|  