Craft melodious tunes in accordance with the outlined letter representation and the provided thematic element.
X:1
L:1/8
M:4/4
K:C
['GBA G2 B', 'ded dcB']  
X:1
L:1/8
M:4/4
K:C
[M:6/8][K:G] .abc D | GBA G2 B | def gdB | GBA G2 B | AFD AFD | GBA G2 B | def gfg | ecA dBG | 
 FEF G2 :: B | ded dcB | def gdB | ded dcB | AFD AFD | ded dcB | def gfg | ecA dBG | FEF G2 :|  