Create a composition following the defined musical structure in language.
'Binary', 'Sectional: Verse/Chorus'  
X:1
L:1/8
M:2/4
K:Bb
 (BA) | B2 B,2 | B,2 FE | DF B2 | DF Bd | c2 C2 | C2 (ec) | AF Ac | B2 :: (cd) | e2 c2 | c2 (=Bc) | 
 d2 _B2 | B2 (AB) | cBAc | B2 (df) | gfga | b2 :|  