Construct harmonious tunes in line with the outlined letter symbolism and the presented thematic component.
X:1
L:1/8
M:3/4
K:G
['D G>A B2 B>BcA B2 B>Bc>d c2', 'F2 F>G']  
X:1
L:1/8
M:3/4
K:G
 D G>A | B2 B>BcA | B2 B>Bc>d | c2 c>B A>G | D3 D G>A | B2 B>BcA | B2 B>Bc>d | c2 c>B A>G | A3 :: 
 B c>d | e2 g>f e>f | d3 c B>A | G>F G>A B>G | D4 G>F | E2 E>F G>A | G2 F2 E2 |1 F2 F>G A>B | 
 A3 :|2 F2 F>G A>F | G3 ||  