I thought that Youlou singing on this album, but 5 years ago i didn't hear him. I only saw him on the booklet when they performed Oleli Oleli in concerts with Madilu as guest and Sonodisc put his name.

Shortly after the release of the album, Six Mille Six Cent Volts aka Daniel Muanda and Alain leaving the band with Daniel joined Zaiko and Alain Wenge El Paris.

What is the name of the guy who did mabanga on all the songs ? Is Franco's brother ?

Is this dude still alive..?

In 2004 when Youlou Mabiale became sick, OK Jazz disbanned. Bana OK also split since Simaro's death.

Is this dude still alive..?

yes

They were buzzing about how he was dead, even when Fernand Mabala died.

https://lesechos-congobrazza.com/culture/6186-youlou-mabiala-mort-une-rumeur-absurde-lancee-sur-internet

Someone said to me that Simaro invited him in Kinshasa when they recorded La Releve in Brazzaville.

In the same year Youlou sended OK Jazz to Kinshasa and recorded Infraction (which was came out one year later).

Transmission of the torch to Youlou Mabiala