Construct a harmonic melody using the outlined chord structure.
'D', 'A7', 'A7', 'D', 'D', 'D7', 'G', 'G', 'D', 'A7', 'D', 'D', 'D', 'G', 'D', 'A7', 'A7', 'D', 'D', 'D7', 'G', 'G', 'D', 'A7', 'D', 'A7'  
X:1
L:1/4
M:3/4
K:D
 a |]"D" a2 f | f3/2 d/ d | d A2- | A z F/G/ | A B c | d3/2 e/ f |"A7" g e2- | e z g | 
"A7" g e3/2 ^d/ | e c3/2 =c/ | ^c A2- | A z a/a/ | a a a | b a a |"D" f3- | f z a |"D" a2 f | 
 f2 d | d A2- | A z a/a/ | a a a |"D7" d'3/2 a/ a |"G" b3- | b z b |"G" b2 g |"^(A7)" g3/2 a/ b | 
"D" a f2- | f f g |"A7" a a a | g f e |"D" d3- |"^fine" d z2 |] |"D" z d d | z A A | z d d | 
 z A A ||"D" A A3/2 A/ |"G" B d3/2 d/ |"D" f f2 | z z A/A/ | A A A | A B d |"A7" e3- | e z g | 
"A7" g3/2 e/ e | e2 c/c/ | c A2- | A z a/a/ | a2 a | a2 g |"D" f3- | f z a |"D" a f3/2 f/ | 
 f d3/2 d/ | d A2- | A z a/a/ | a a a |"D7" a g a |"G" b3- | b z b |"G" b g g |"^(A7)" g a b | 
"D" a a a | a f g |"A7" a a a | g f e |"D" d2 z |"A7" a3 |]  