Develop tuneful melodies adhering to the specified letter notation and including the supplied thematic aspect.
X:1
L:1/8
M:2/4
K:F
['D/E/ GG G F/D/ GG G(A/G/) FF']  
X:1
L:1/8
M:2/4
K:F
 D/E/ | GG G F/D/ | GG G(A/G/) | FF Ac | d2 z c | cc d(c/f/) | dG G(A/G/) | FD F(G/A/) | B2 AG | 
 AD FA | G2 z ||  