Develop melodies utilizing the stated letter notation and the provided theme.
X:1
L:1/8
M:4/4
K:D
['A, D2 E DEFG A8']  
X:1
L:1/8
M:4/4
K:D
|:"D" A, D2 E DEFG | A8 |"Bm" BFFE F2"Em" FA |"F#" F8 |"D" A, D2 E DEFG | A8 |1 
"C" GED=C"Bb" _B,2 DE |"D" D8 :|  