Yes I have heard of them As a matter of fact I have built several of them. I was raised in Missouri and in the Ozark Mountains the Dulcimer is very popular. Also harps are still around. I built two of them, one for my wife and one for my Mom. I have the plans in my shop right now for another Dulcimer and when I get the time I will build it. Might even try to learn how to play it.