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
 agfd e2 dB | A F3 DFAd | B G3 EAAG | F A3 F A3 | agfd e2 dB | A F3 DFAd | BGGF G2 ag | 
 faeg fe d2 :| a2 fd Adfd | e3 d c' a3 | a2 fa bged | Beed efge | f3 a g3 e | f2 ef dBAG | 
 F A3 faag | faeg fe d2 :|  