Construct harmonious tunes in line with the outlined letter symbolism and the presented thematic component.
X:1
L:1/8
M:2/4
K:D
['d/f/a/f/ dA Bg g2 fedc', 'd2 Add=c cB B2 Beed cA A2']  
X:1
L:1/8
M:2/4
K:D
 d/f/a/f/ dA | Bg g2 | fedc | (e/d/c/B/) A2 | d/f/a/f/ dA | Bg g2 | fedc | d2 d2 :: Add=c | cB B2 | 
 Beed | cA A2 | ecAe | fdAf | e>f e/d/c/B/ | A2 A2"^Da Capo" ||  