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
['B2 d>B AG', 'D2 D>E DG']  
X:1
L:1/8
M:2/4
K:G
 B2 d>B | AG E2 | A2 B>A | GE D2 | B2 d>B | AG E/F/G/A/ | Bd BA | G2 G2 || D2 D>E | DG GF | 
 E2 E>D | EA AF | D2 D>E | DG GA | Bd BA | G2 G2 |]  