Design a melodic composition using the outlined structure while keeping within the customary elements of the given genre.
'Ternary', 'Sectional: Verse/Chorus/Bridge'  
X:1
L:1/8
M:6/8
K:Bb
 F |:"Bb" B3 F3 |"F" c2 e"Bb" dcB |"F" cde"Bb" f2 B |"Cm" BcB"F7" AGF |"Bb" B3 F3 | 
"F" c2 e"Gm" dcB |"Eb" cde"Cm" f2 B |"F7" BcA"Bb" B2 B ::"F" cde"Bb" f2 B |"Eb" e2 g"F" fdc | 
"Gm" Bcd"Eb" e2 d |"Cm" cdB"F7" AGF |"Eb" GAB"Bb" B2 F |"Cm" GAB"F7" cde |"Bb7" dfB"Eb" e2 d | 
"Cm" cdB"F7" AGF :|33"F7" cBA"Bb" B2 ||  