Design a melodic composition using the outlined structure while keeping within the customary elements of the given genre.
'Binary', 'Sectional: Verse/Chorus'  
X:1
L:1/8
M:6/8
K:G
 d | g2 g gfg | e2 g d3 | def gab | c'ag fed | g2 g gfg | e2 g d3 | def gab | c'af g2 :: z | 
 g2 a b2 b | bc'b a2 g | bag bag | a2 g a2 b | g2 a b3 | bc'b bag | a2 g a2 b | g3 g2 :|  