Devise a harmonic structure to support the present melody.
ec' ba gf | ec' ae A>f | ed' gf G>f | ec' ae A2 | ec' ba gf | ec' ae A>f | 
 gb ge d'c'/b/ | a2 z4 || b>c' d'g fG | A>c ec' af | G>B ed' gf | A>c ec' a2 | 
 b>c'"_d" d'g fG | A>c ec' af | G>B"_e" e"_e"e'/d'/ e"_d"d'/c'/ | a2 z4 |]  
X:1
L:1/8
M:3/4
K:A
 ec' ba gf |"A" ec' ae A>f |"E7" ed' gf G>f |"A" ec' ae A2 | ec'"D" ba"E7" gf |"A" ec' ae A>f | 
"E7" gb ge d'c'/b/ |"A" a2 z4 ||"E7" b>c' d'g fG |"A" A>c ec' af |"E7" G>B ed' gf |"A" A>c ec' a2 | 
"E7" b>c'"_d" d'g fG |"A" A>c ec' af |"E7" G>B"_e" e"_e"e'/d'/ e"_d"d'/c'/ |"A" a2 z4 |]  