Develop tuneful melodies adhering to the specified letter notation and including the supplied thematic aspect.
X:1
L:1/8
M:4/4
K:C
['BGDG cAFD d^cde dBGD EdcB', '(ga) b>g', 'b>g (3ggg']  
X:1
L:1/8
M:4/4
K:C
 BEA |[M:2/2][K:G]SOSOO .!fermata!PMTuCO(Mdc)"^Segno" | BGDG cAFD | d^cde dBGD | EdcB AGFG | 
 (3ABG (3FGE Dcdc | BGDG cAFD | d^cde dBGD | EdcB AGFA | G>B (3def g2 :| (ga) |: b>g (3ggg dgBg | 
 b>g (3ggg dgBg | c'>a (3aaa eaca | c'>a (3aaa eaca | b>g (3ggg dgBg | b>g (3ggg df b2 |1 
 (3aba (3gag (3fgf (3efe | (3ded (3cdc (3BcB ga :|2 agfa gfec | (3ddd ef ged"^Dal Segno" c |]  