from 22nd minute he talks about his time with reddy and his behaviour,looool the guy would get mad if even if he left home and he came back to see people watching another channel and things like that

from 20:42 min

I noticed the same thing what Marca House said. In my opinion it was after Ziggy time for Reddy to work with songwriters. He started to become limited in his compositions. In Etoile you could already hear that.

nathy lokole also said the same thing to him in several interviews
i did not know that its ferre himself who played mbonda on tucheze,back in 4X4 he used to take over ali in rehearsals when ali would go to toilet or to smoke some weed lol