Construct harmonious tunes in line with the outlined letter symbolism and the presented thematic component.
X:1
L:1/8
M:4/4
K:D
['D2 FE D2 FA dcde fdAF G2', 'D4 A,B,CD EFGF EDEF GABc dcdB ABcd']  
X:1
L:1/8
M:4/4
K:D
 D2 FE D2 FA | dcde fdAF | G2 BG F2 AF | EFGE DCB,A, | D2 FE D2 FA | dcde fdAF | G2 BG F2 AF | 
 ECA,C D4 :: A,B,CD EFGF | EDEF GABc | dcdB ABcd | fagf e2 A2 | d2 fd c2 ec | BcdB AFDF | 
 G2 BG F2 AF | ECA,C D4 :|  