Construct harmonious tunes in line with the outlined letter symbolism and the presented thematic component.
X:1
L:1/8
Q:3/8=110
M:6/8
K:G
['G/A/ B>cB BAG', 'abg fed']  
X:1
L:1/8
Q:3/8=110
M:6/8
K:G
"_Allegro" G/A/ | B>cB BAG | BAB B2 G/A/ | B>cB BAG | GAB g2 a | fed edB | ABA f2 f | g>fe dBG | 
 B3 d2 || d | gab abg | fed a2 f | g>ab abg | fed g2 g | fed edB | A>BA f2 f | gfe dBG | B3 d2 |]  