Craft melodious tunes in accordance with the outlined letter representation and the provided thematic element.
X:1
L:1/8
M:2/2
K:G
['G2 (BG) dGBG ABcd cBAG Bdgd egdB', 'g2 (dg) Bgdg']  
X:1
L:1/8
M:2/2
K:G
 uD2S | G2 (BG) dGBG | ABcd cBAG | Bdgd egdB | cBAG FADF | G2 (BG) dGBG | ABcd cBAG | Bdgd egdB | 
 edcA G2 :: (uef)S |{a} g2 (dg) Bgdg | gabg agef | g2 (dg) Bgdg | cBAG FADF |{a} g2 (dg) Bgdg | 
 gabg agef | gfga gfed | egfa gedBS"_D.C." :|  