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:4/4
K:D
|: A2 AF DFAF | G2 BG dGBG | A2 AF DFAF | GBAF E2 D2 :: ABde f3 d | g3 e fedB | ABde f2 fg | 
 afdf e2 d2 :|  