In the show that I saw they had seven drummers sitting on the front of the stage with small drums, 14 inches or so, sitting on small stands. They started out by doing very silent single stroke taps that got more and more intricate and louder as the went. The crescendo was amazing. They then began to play a little softer down to where they started, so you could barely hear, and all in unison without missing a beat. I was mesmerized. If you ever get a chance to see one of these troupes, GO.