Craft melodious tunes in accordance with the outlined letter representation and the provided thematic element.
X:1
L:1/4
M:3/4
K:G
['d c']  
X:1
L:1/4
M:3/4
K:G
 D | G3/2 G/ G | B A G | A2 D | D2 D | A3/2 A/ A | (c B) A | B2 G | G2 B | c3/2 c/ c | e d c | 
 B3/2 B/ B | d c B/B/ | A2 A | c2 F | (G2 B | d2) B | c3/2 c/ c | e d c | B3/2 B/ B | d c B/B/ | 
 A2 A | c2 F | G3 | G z |]  