Construct harmonious tunes in line with the outlined letter symbolism and the presented thematic component.
X:1
L:1/8
M:2/2
K:G
['(BA) GFGA (Bd{e} (3dcd ef)ge dB{c} (3(BAB)', 'dbag efge']  
X:1
L:1/8
M:2/2
K:G
 (BA) | GFGA (Bd{e} (3dcd | ef)ge dB{c} (3(BAB) | efge dBGA | BAAG AcBA | GFGA (Bd{e}(3dcd) | 
 efge dB TB2 |{a} gfge dBge | dBAB G2 || (Bc) | dbag efge | dBgB (TBA) A2 | dbag efge | 
 dgfa g2 ga | (3(bag) af gfed | (3(efg) dB cBAF | GFGA Bcdg | fdcA G2 |]  