Craft melodious tunes in accordance with the outlined letter representation and the provided thematic element.
X:1
L:1/8
M:2/4
K:G
['dd/e/ dd', 'z GG AA BB c z']  
X:1
L:1/8
M:2/4
K:G
 dd/e/ dd | ddBG | ccAG | FA/F/ D z | dd/e/ dd | cc AF | A3 z :| GG AA | BB c z | BB AA | d>B G z | 
 GG AA | BB c z | B/d/B/G/ A/B/A/F/ | GG G z :|  