19 minutes de ngwasuma was to pay tribute to zaiko's history. Just to show people that they are the true heads of animation/sebene since that they came with the atalakus and made the sebene how it is today (the way of playing drums by late Meridjo Belobi, the way of playing lead guitar by Felix Pedro Manuaku and the way of playing bass by Oncle Bapius). This is why they came with sebenes/cri's of 1988-89 (nsunsu eko kele), 1992 (sala mosala), 1995, 1998 (lisolo ya niama nzamba), 2001 and 2003. The same album is called Empreinte (footprint in french) to refer how important their contribution is in Congolese music.
Back in 1991, when the Congolese press started to praise Wenge 4x4 often, they named one of their album "jamais sans nous" (never without us), just to show people that the Congolese music wouldn't be like how it became in the 90s without the contributions of Zaiko Langa Langa. But many failed to understand that statement and just focused on the songs
Some people critizes Zaiko for not being creative anymore since 1992 because of often remixing their songs. Nous Y Sommes for example is apart Sois Sage and 7x77 a remix album of songs recorded in 1991, 1986 (Ben Betito) and 1974 (Amando). Zaiko's most succesfull album remains Nippon Banzai of 1986 which is a remix album and internationally known (it was able to fight Kassav in nightclubs), followed by Jetez l'Eponge of 1989 also a remix-album (the medley is still played until this day on many parties).
