Compose a tune following the outlined musical pattern.
'Binary', 'Sectional: Verse/Chorus'  
X:1
L:1/8
Q:1/4=140
M:2/4
K:F
 f | c>B A>G | FD C2 | FF Ac | dc/B/ A>G | FD De | fd ec | d4 | f :: c | fa fa | 
"_NB-->" fa/-a/ gf | eg eg | eg- gf/e/ |"_<--NB" fa- ag/f/ | ge dc | d4 | f :|  