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:2/4
K:C
"C" Gc Ec |"G7" BD/E/ F/E/D | Fd DB |"C" cE/F/ G/F/E | Gc Ec |"G7" BD/E/ F/E/D | Fd DB |"C" c3 z :: 
[K:G]"G" BB/B/ BB |"D7" cF A2 | cc/c/ cc |"G" dG B2 | BB/B/ BB |"D7" cF A2 | cc/c/ cF |"G" GBG z :: 
[K:C]"G7" D>E FA |"C" AG G/A/G |"G7" GF F/G/F |"C" FE E2 |"Dm/F" D>E FA |"C/G" AG G/A/G | 
"G7" GF F/E/D |"C" CEC z :|  