Construct harmonious tunes in line with the outlined letter symbolism and the presented thematic component.
X:1
L:1/4
M:4/4
K:G
['F G', 'd d']  
X:1
L:1/4
M:4/4
K:G
 A,/A,/ | A3/2 E/ F G | A3/2 G/ c d/c/ | A3/2 G/ D D | D3 F | G A/A/ B d/d/ | e d B (A/B/) | 
 c A B c | A3 (A/B/) | c/c/ E F G | d d2 e | d B A G | C3 A, | D D/E/ F G | A3/2 G/ c (d/c/) | 
 A G/G/ D D | D3 || A/B/ | c E F G | d d d e | d B A G | C3 A, | D (D/E/) F G/G/ | A G c d/c/ | 
 A G/G/ D D | D3 ||  