Construct harmonious tunes in line with the outlined letter symbolism and the presented thematic component.
X:1
L:1/16
M:3/4
K:Bb
['(DB)(fB) (DB)(fB)']  
X:1
L:1/16
M:3/4
K:Bb
|:"Bb" B2dB F2BF D2FD | B,2>D2 F2B2 d2B2 |"F7" c2ec A2cA F2GA |1,3"Bb" B2d2 (cB)AG"F7" F4 :|2,4 
"Bb" B4 B8 ::"Bb" (DB)(fB) (DB)(fB) (DB)(fB) |"Eb" (EB)(gB) (EB)(gB) (EB)(gB) | 
"C" (=Ec)(gc) (Ec)(gc) (Ec)(gc) |"F" (Fc)(ac) (Fc)(ac) (Fc)(ac) |"Bb" b2>a2 g2f2 e2d2 | 
"Gm" g2>f2 e2d2 c2B2 |"F7" A2>G2 F2E2 DEDC |"Bb" B,4 B,8 :|  