Construct harmonious tunes in line with the outlined letter symbolism and the presented thematic component.
X:1
L:1/8
M:2/4
K:G
['B2 z G/B/ d3 d e2 dc']  
X:1
L:1/8
M:2/4
K:G
 G/B/ | d2 dc | BABc | dded/c/ | B2 z G/B/ | d3 d | e2 dc | B2 A2 | G2 z2 | A2 AA | A3 d | 
 B/B/B/B/B/A/B/c/ | B2 z G/B/ | d3 d | e2 dc | B2 A2 | G2 z |]  