Hmm... that sounds extremely familiar. So much that I had to go look it up and see where exactly it was from because I had definitely heard that before. After searching all of the projects in Fruityloops I came across this repeating mp3, and it sounds as if yours just adds a tapping to this pre-made loop.
Here's a link to the FL project file in mp3 format, hosted on my server.
http://www.impulse3d.com/3osc02.mp3