This is too good not to share. I always wanted someone to show me how this works, and there is no one better than this pair. A friend tells me this couple are very, very nice people. There is a nice selection available of them playing music on YouTube. This video was created by Reverb, the Audiogon of musical instruments and performance equipment.
https://www.youtube.com/watch?v=F5LeYKLhk6Q&t=318s
