So I can only really describe this song...I have tried everything over several days and I think it may be the death of me.
It is a group of singers like some male and female all singing at different and the same times. The only lyrics are 'do dobedobedod waoo waoo do dobedobedodo ba dobedobedobedo' which is utter gibberish. It is mellow and jazz sounding. I heard it around 10 years ago but on vinyl so it really could be anything. I have a feeling it is French or something. The voices in it act sort of percussively in the way they sing.