Develop harmonious chord sequences to enhance the given tune.
|: A3 e cAec | Aece (3Bcd BG | A3 e cA ec | BE E2 GABG | A3 e ce e2 | 
 ce e2 (3Bcd BG | A3 e cA ed | BE E2 GA (3Bcd :: e3 f edcd | edge dG (3Bcd | 
 ea{b}ag edcA | BGEF GA (3Bcd | e3 f edcd | edge dGBG | A3 B =cB cd | 
 edfd gedB :|  
X:1
L:1/8
M:4/4
K:Amix
|:"A" A3 e cAec |"A" Aece"G" (3Bcd BG |"A" A3 e cA ec |"Em" BE E2"G" GABG |"A" A3 e ce e2 | 
"A" ce e2"G" (3Bcd BG |"A" A3 e cA ed |"Em" BE E2 GA (3Bcd ::"A" e3 f edcd |"A" edge"G" dG (3Bcd | 
"Am" ea{b}ag edcA |"Em" BGEF"G" GA (3Bcd |"A" e3 f edcd |"A" edge"G" dGBG |"Am" A3 B =cB cd | 
"Em" edfd"G" gedB :|  