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:2/2
K:D
 DFAB AFAB | DFAB AF E2 | DFAB AFAf | edef d4 :: f>ede f>gaf | cAeA cAeA | f>ede f>gaf | edef d4 :|  