BlahBlahCafe - Jean-Michel Jarre forum

I'am very curious about the melody from the Calypso part 1. I think, the first part of that track is Jarre's genuine composition, but i wonder, if the melody beginning at 5:54 is borrowed from some other artist, maybe traditional song or something. If anybody know something about it, please tell! I wonder about this for years!

Why would it be?

I don't know, but it sound veeeeeery familiar to me.... don't know why....