Construct harmonious tunes in line with the outlined letter symbolism and the presented thematic component.
X:1
L:1/8
M:6/8
K:G
['BAB G2 d d2 e d3', 'd2 d', 'd2 c', 'B2 A']  
X:1
L:1/8
M:6/8
K:G
 BAB G2 d | d2 e d3 | cdc B2 B | ABA G2 D | BAB G2 d | d2 e d3 | gag f2 f | efe d3 :: d2 d ded | 
 c2 B c2 A | c2 c Bcd | c2 B A3 | d2 d e2 e | fga g2 G | cdc B2 B | ABA G3 ::[K:Gmin] BAG d2 e | 
 d2 c B2 A | BAG ^F2 G | c2 B A3 | BAB c2 e | d2 c B2 F | fed gfe | d2 c B3 :: dcd e2 d | 
 c2 d B2 A | Bcd c2 B | A2 G ^F3 | gab a2 g | ^fga g3 | dcd edc | B2 A G3 :|  