Develop tuneful melodies adhering to the specified letter notation and including the supplied thematic aspect.
X:1
L:1/4
Q:3/4=80
M:6/4
K:Gmin
['G3/2 A/ G', 'G2 (3d/=e/^f/ g2 g g a b']  
X:1
L:1/4
Q:3/4=80
M:6/4
K:Gmin
 D | G3/2 A/ G B2 c | A F F F2 A | G3/2 A/ G g3/2 a/g/a/ | ^f d d d2 e | f B f f3/2 e/ d | 
 c d B A3/2 B/ c | d2 d d3/2 e/d/c/ | B G G G2 || (3d/=e/^f/ | g2 g g a b | a f f f2 e/^f/ | 
 g B d g3/2 a/g/a/ | ^f d d d2 e | f B f f3/2 e/ d | c d B A3/2 B/ c | d2 d d3/2 e/d/c/ | 
 B G G G2 |]  