Develop tuneful melodies adhering to the specified letter notation and including the supplied thematic aspect.
X:1
L:1/8
Q:1/4=100
M:4/4
K:C
['a g<eed c>dcG AcGc AcGa g<eed c>dce', 'g3 g a<ff>d e>fge f<dd>B c>deG AcGc']  
X:1
L:1/8
Q:1/4=100
M:4/4
K:C
 a | g<eed c>dcG | AcGc AcGa | g<eed c>dce | dgg^f g3 :: g | a<ff>d e>fge | f<dd>B c>deG | 
 AcGc AcGa | g<eed c>dc :|  