Develop melodies utilizing the stated letter notation and the provided theme.
X:1
L:1/8
M:2/4
K:A
['=ccdd =c2']  
X:1
L:1/8
M:2/4
K:A
 =ccdd | =c2 A2 | =ccdd | =c_BAd | =c_BA z | c2 A z | =c2 AA | =ccdd | =c/c/_BAd | =c/c/_BA z | 
 ccdd | =c2 =F z | =ccdd | =c2 A z | (3ccc(3czc | (3=ccccz/c/ | (3=ccccz/^c/ | 
 (3=ccccz(3ccccz/^c/ | (3=cccc z |]  