Construct harmonious tunes in line with the outlined letter symbolism and the presented thematic component.
X:1
L:1/8
M:none
K:D
['B AFdB AF DB AFde{d} c2 EF/G/', 'd/e/f/g/ afbg']  
X:1
L:1/8
M:none
K:D
 B | AFdB AF DB | AFde{d} c2 EF/G/ | AFdB AFDf | edef ddd d :: d/e/f/g/ afbg ag | edef e/e/e e2 | 
 d/e/f/g/ afbg af | edef d/d/d d2 :|  