For example from 9 30 it is  song which was also used in quartier latin integral including a lot of the vocals and there is also one or two cultura vocals there

I suspect Biva Rai for bringing the song Zando to Quartier Latin Integral, because there was moment that he he was part of Dakumuda's band. Another thing is also that street-bands sometimes used to sing the same songs or songs that came from the previous generation of street-bands and nobody knowing who the real author is