Sounds great! But HOW is it done? What do you do with your tongue, mouth shape, etc...Here is an example of a technique that I call, for lack of a better term, "drone-blocking". I didn't invent or discover this technique, by any means. I heard another harp player do it a while ago and I ran w/ it. (though I will take credit for coining the phrase) I must say I have enjoyed exploring its potential. It's a real crowd pleaser. Hope you like it!