Construct harmonious tunes in line with the outlined letter symbolism and the presented thematic component.
X:1
L:1/8
M:2/4
K:G
['AB/A/ GB', 'g3/2 d/ ed Bd ed B>d ed']  
X:1
L:1/8
M:2/4
K:G
|: A/ | B2 AB/A/ | GB d2 | ed GA | Be ed | Bd/B/ AB/A/ | GB d/^c/d | ed ef | g2 g3/2 :: d/ | 
 ed Bd | ed B>d | ed GG/A/ | Be ed | B2 AB/A/ | GB d/^c/d | ed d/e/f | g2- g3/2 :|  