There's polemic about Koffi's music-style Tchatcho and the even the word Tchatcho, from the moment Naty Lokole made an interview with various artists (Maika Munan, Djudjuchet, Souzy Kaseya, etc.). From then people claiming that Koffi created nothing and just copied Bosco Mwenda (I think that Koffi himself don't even know a song from him) and that even the name Tchatcho came from Bosco stealing it from Tchatché. Others saying that it comes from donor Tchatcho Mbala (They forgot that Koffi already started to his music Tchatcho since the Diva album (1985), Tchatcho Mbala wasn't known at that time he came around 1990-91).
So when thinking about it, I remember that Koffi had an interview with Ado Yuhe 2 years ago and said that he took the word Tchatcho from Armando who used to play mbonda for Tabu Ley Rochereau. The same Armando participated to Koffi's first album Ngounda and was the one who started the album with his mbonda partition.
I guess that Armando was screaming "Dédé Dédé Tcha-Tcho !!!" like the way Nono Monzoluku, Djerba Manzeku and Cele Mbonda and many other folkloric mbonda players used to do before starting a partition. If I remember well it's in Kimbala.
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About the creation of the music-style Tchatcho. In my opinion there are two different Tchatcho Style's the one of 1987-1991 and that of V12-Noblesse Oblige which development already started slowly from Les Prissoniers Dorment and that most artists copy nowadays because of being lazy.
That of 1987 - 1991 has three creators Rigo Star, Manu Lima and Koffi Olomidé. After Diva and Ngobila, Koffi wanted to create his own identity and music-style. In Rue d'Amour he played rhythm-guitar by himself. You can hear that the songs Stephie & Petit Frere ya Frere are his own creations. The start of Stephie is played the almost the same way in many Koffi songs. Examples are the intro of Medecin de Nuit and the second part Fouta Djallon, but in a fast way.
Like many Congolese people of that time, Koffi Olomide was a huge fan of Julio Iglesias. With help from keyboard player/arranger Manu Lima they started something totally different than the original Congolese music. Which total dominace of the keyboards.They already worked on Rue d'Amour which was more live. But in the albums Henriquet, Elle et Moi and Les Prissoniers Dorment he had more freedom. The stopped working with each other after Les Prissoniers Dorment, because Manu Lima wasn't happy that Koffi wasn't crediting him as composer of all songs he arranged for him. From then he started to work with Phillipe Guez. It stopped music-scene Koffi used to have in the late 80s, because Manu Lima's way of playing keyboard was unique.
The second Tchatcho-genre was created by Koffi Olomidé, Maika Munan and Phillipe Guez. Which is basically tracks who are the style of the song five songs Fouta Djallon, Zero Faute, Etat Civil, Mbabula and Koweit Rive Gauche. The song Koweit Rive Gauche having his child S.O.S. and others. Etat Civil having his child Papito Charme and (a song Wazekwa made in his album sponsor but I forgot the title). Zero Fauté having his child Non Assistance, etc. Mbabula having Sef and Iteneraire as part 2. But Mbabula and Etat Civil having not many replica's compared to Fouta Djallon, Koweit Rive Gauche and Zero Faute
