Develop harmonious chord sequences that enhance the given musical composition.
|: ed || c2 A2 ABAF | EFAB dcBA | d2 B2 BcBA | Bcde gfed | c2 A2 ABAF | 
 EFAB dcBA | Bcde fefa | edcB A2 :: ed || cAeA fAeA | cAeA fedc | dBfB gBfB | 
 dBfB gfed | cAeA fAeA | cAeA fedc | Bcde fefa | edcB A2 :|  
X:1
L:1/8
Q:1/2=120
M:2/2
K:A
|: ed ||"A" c2 A2 ABAF | EFAB dcBA |"Bm" d2 B2 BcBA | Bcde"E7" gfed |"A" c2 A2 ABAF | 
"A" EFAB dcBA |"D" Bcde fefa |"E7" edcB"A" A2 :: ed ||"A" cAeA fAeA | cAeA fedc |"Bm" dBfB gBfB | 
 dBfB"E7" gfed |"A" cAeA fAeA | cAeA fedc |"D" Bcde fefa |"E7" edcB"A" A2 :|  