Develop tuneful melodies adhering to the specified letter notation and including the supplied thematic aspect.
X:1
L:1/8
M:2/2
K:G
['G>AB>G A3 d c>Bc>d B2 G2 d>de>=f', 'd2 d2']  
X:1
L:1/8
M:2/2
K:G
 G>AB>G | A3 d c>Bc>d | B2 G2 d>de>=f | e3 d e>fg>a | f2 d2 :: a>fg>a | b3 a g>ag>f | e3 e a>gf>e | 
 d2 d2 d2 cB | c3 B B3 A | A3 B c>Bc>d | e3 f e>de>f | g2 G>A B>cd>e | d2 B2 e2 e>B | c2 de A3 G | 
 !fermata!G4 |]  