Construct harmonious tunes in line with the outlined letter symbolism and the presented thematic component.
X:1
L:1/4
M:4/4
K:D
['d/e/ f/g/f/e/', 'A f f/e/']  
X:1
L:1/4
M:4/4
K:D
 d/e/ |:"D" f/g/f/e/ d3/2 B/ | A D F A |"Em" G E e3/2 d/ |"A7" c B c/B/ A |"D" f/g/f/e/ d3/2 B/ | 
"D" A D F A |"Em" G E"A7" e3/2 f/ |"D" e d d2 ::"D" A f f/e/ f |"G" B g g/f/ g |"D" A f f/e/ d | 
"A7" e/f/e/d/ B A |"D" A f f/e/ f |"G" B g g3/2 a/ |"A7" b a g c |"D" e d d2 :|  