Develop tuneful melodies adhering to the specified letter notation and including the supplied thematic aspect.
X:1
L:1/8
M:4/4
K:Gdor
['de cA', 'fd cA']  
X:1
L:1/8
M:4/4
K:Gdor
|: GG AF Gd cA | DG AG FG Ac | de cA GA Bc | de fd gg ga | b/a/g ag fd de | fd ge fd cA | 
 GG AG FG Ac |1 de cA GG AF :|2 de cA GG df |: gg ag fd d^e | gf dc Ad dc | AG GG AG dc | 
 A GG A F2 GE | FG AF Gd cA | ^FG AG FG Ac | df gg fg ag |1 fd cA GG df :|2 fd cA Gd cA ||  