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:1/4
Q:1/4=180
M:3/2
K:C
[K:Dmin]|:"F" A c d c f A |"C" G2 E2 B2 |"F" A c d c f g |"Dm" a4"C" g2 |"Dm" a g f c d f | 
"Bb" d2 F2"F" A2 |"Gm" G A B c A2 |"C" B3 c B2 ::"Bb" B F G F G B |"Bb" D3 B D2 |"C" E G A G A c | 
"C" E3 c B2 |"F" A c d c f c |"Bb" d3 e/f/ g d |"C" e c A a f a |"F" f3 g f2 :|  