Listen to On the River Oubangui [Congo] online. On the River Oubangui [Congo] is an English language song and is sung by Aka Pigmies Singers. On the River Oubangui [Congo], from the album African Polyphony - African polyphonic vocal styles, was released in the year 2007. The duration of the song is 4:29. Download English songs online from JioSaavn.