Develop a melody while staying within the specified chord structure.
'D', 'G', 'A7', 'D', 'D', 'G', 'A7', 'D', 'D', 'C', 'D', 'C', 'D'  
X:1
L:1/8
M:2/4
K:D
 A |"D" DF A>A |"G" BB GE |"A7" EF GF/G/ |"D" AA FD |"D" DF A>A |"G" BB GE |"A7" AA G/F/E | 
"D" D2 D :: A |"D" dd/d/ de | d2 AB |"C" =cc/c/ cd | =c2 A2 |"D" dd/d/ de | d2 AB |"C" =cA GE | 
"D" D3 :|  