Oh my God, this video just opened my eyes, there's a tribe in my country, the idoma tribe whose traditional music sounds the same, I always thought they were singing badly on purpose.
There are clips of several songs in this video. The first one is called "Wanp-Wanp Jangl Kap" (Everyone Listen Close), which is also the title of their CD: facebook.com/154082231326190/posts/new-release-20190901pan-2122everyone-listen-closewanp-wanp-jangl-kapthe-yandong-/2461826827218374/
