My Grandson is nine. His Birthday is in a few days so I am making him a double pipe....... a pipe with a drone attached. Out of Bamboo of course!!!!
Another view shows the fipples.
Now that the pipe is out of the clamps, I have been able to try it out. It works beautifully. You can adjust your mouth to cover one or the other or both to varying degrees of pressure. You can get a whole scale of overtones on the long pipe. EEEEEEERY, but very nice. Like a wind chime.
Cheers Chris the Pipemaker