Construct harmonious tunes in line with the outlined letter symbolism and the presented thematic component.
X:1
L:1/8
M:2/2
K:F
['c2 B2', 'g2 f2']  
X:1
L:1/8
M:2/2
K:F
 FGAB c2 c2 | d3 d c2 B2 | d4 f4 | d3 c B2 d2 | c2 B2 B3 A | B4 B4 :: f3 g a2 a2 | b2 a2 g2 f2 | 
 g4 c'4 | c3 d e2 f2 | g2 f2 f3 e | f4 f4 :|  