Construct harmonious tunes in line with the outlined letter symbolism and the presented thematic component.
X:1
L:1/8
M:6/8
K:Bb
['B,2 B,']  
X:1
L:1/8
M:6/8
K:Bb
 F | B,2 B, B,2 C | F3 B,2 B, | C2 B, B,2 B, | B,3- B,2 F | B2 B G2 B | A3 F2 D | C2 C D2 =E | 
 F2- F2 F B2 B G2 B | A F3 D | C2 C B2 G | F3 F2 D | B,2 B, C3 D | F3 D2 B, | C3 B,2 B, | 
 B,3- B,2 ||  