Construct harmonious tunes in line with the outlined letter symbolism and the presented thematic component.
X:1
L:1/8
M:6/8
K:D
['d3 fed dcB AGF G2 A Bcd', 'G3 A3 Bcd']  
X:1
L:1/8
M:6/8
K:D
 d3 fed | dcB AGF | G2 A Bcd | A2 F DEF | G3 BAG | F3 D3 :: G3 A3 | Bcd e3 | G3 A3 | Bcd e2 f | 
 d2 c d2 B | A2 G FGA | B2 c dcB | A2 F DEF | G3 BAG | F3 D3 :|  