Construct harmonious tunes in line with the outlined letter symbolism and the presented thematic component.
X:1
L:1/4
Q:1/4=120
M:4/4
K:G
['d c B']  
X:1
L:1/4
Q:1/4=120
M:4/4
K:G
|: d d/d/ d e | d c B d | c B A d | c B A2 | d d/d/ d e | d c B d | c B A2 | d z G2 :|  