Craft melodious tunes in accordance with the outlined letter representation and the provided thematic element.
X:1
L:1/8
M:4/4
K:G
['dBAB G3', 'dB B2']  
X:1
L:1/8
M:4/4
K:G
 ge | dBAB G3 E | DG G2 DGBe | dBAB G3 A | Beed efge :| dB B2 dBge | dB B2 d3 e | dB B2 g2 fg | 
 egdB A2 Bc | dB B2 dBgf | edef g3 a | b2 af gfed | (3efg fa g2 Bd ||  