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
['DED F2 F EFE G2 G FAD', 'BAG FGA']  
X:1
L:1/8
M:6/8
K:D
 DED F2 F | EFE G2 G | FAD G2 F | EDC D3 :: d2 c d2 A | AB=c B2 A | ABc dAB | AGF E3 | BAG FGA | 
 BAG FGA | BdD G2 F | EDC D3 :|  