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
['.a2 .b2 .a2 z', '.f2 .e2 z a ^gfed c/B/c/d/ ea']  
X:1
L:1/8
M:2/4
K:D
 .a2 .b2 | .a2 z g | .f.e.d.c | d2 z2 | .a2 .b2 | .a2 z d | dc/d/ ef |{a} gf z a | e/d/e/f/ ed | 
 d2 cf | c/B/c/d/ cB | B2 Ae | f2 ^g2{fg} | ae{g} fe/d/ | ef/d/ cB | Ac/ B/cA | d2 Be/d/ | 
 cA{e} dc/B/ | Ad/B/ A^G | A2 z2 :: .e2 .f2 | .e2 z a | ^gfed | c/B/c/d/ ea | ^gfed | aA z A | 
 B2 c2 | d(c/d/) ee | Te2{de} df | fe/f/ gg | g2{fg} fa | b2 c'2 | d'a{=c'} ba/g/ | fb/g/ fe | 
 df/ e/fd | g2 ea/g/ | f{a} gf/e/ | dg/e/ dc | dD z2 :|  