This is very interesting! I will be following this topic! :D
What is it about the drumming that makes the bees land?? Sound? vibration? Pattern-interrupt?
Tanging: (n) The beating of a pot or utensil in order to induce a swarm of bees to land nearby.
The rhythm should be in cadence. The louder the better. The purpose is to fool the bees into thinking a thunderstorm is underway so that the will quickly land low to the ground. The bees will land low because a thunderstorm can raise havoc on a swarm high up. Having a method of spraying some water at the swarm improves the odds of the swarm landing.
Just beating on a pot with a wooden or metal spoon won't work, it is the rhythm that does it. Loud clashing noise at the rate of about once every 2-3 seconds is best, that indicates a nearby thunderstorm. So, all together now, bang, thousand 1, thousand 2, thousand 3, bang......
I've used this whenever I've been near the apiary when a hive swarmed. I loose about 1 out of every 5 swarms, the other 4 land quickly, usually on the lower branch of a fruit tree in the orchard (where the apiary is) but I've had them land at the base of a shrub and all I had to do was put the hive down in front of them and watch them walk in.