It's an African song from the Rain Forest areas of the Congo and other large rivers in central Africa. I forget it's name. My daughter, the music teacher to be, knew the song as soon as I said snapping fingers. She's preformed it a number of times, ths 1st time I heard this song was when she was a sophmore in high school and had won a trip to the state music convention/workshop. She won a trip to either state or regional (WA, OR, & ID), done in alternating years all four years of HS.
It is, of course, a song about the sounds of falling rain, and what it does.