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:4/4
K:G
 f |: gfed Bddf | gfed ea a2 | gfed BddB |1 cBAG DG G2 :|2 cBAG EGFA |: G2 BG dGBA | GABG EAAF | 
 G2 BG dGBG |1 cBAF DGGF :|2 cBAF DG G2 ||  