Develop a composition based on the given structural guidelines.
'Binary', 'Sectional: Verse/Chorus'  
X:1
L:1/8
M:4/4
K:Bb
 F | B/B/B dB ecAF | B/B/B df bfdB | e/e/e Ge d/d/d Fd | B/B/B dB ecAF | B/B/B dB ecAF | 
 B/B/B df bfdB | e/e/e Ge d/d/d Fd | cf=ef cfAf || d/c/B bB aBgB | dfga bfdB | A/G/F eF dFcF | 
 Acd=e fcAF | d/c/B bB aBgB | dfga bfdB | gfed cBAG | FEDC B,3 |]  