I'm subscribed on YouTube to
steveide59 the one who posted that video, and most of the videos he films and post are traditional Bluegrass which I'm a fan of.....
I'm not much of a Fan of what is called "progressive grass" which is what that video is......
Like this one....which you might like...
As traditional Bluegrassers say...."if you have to plug it in or beat it with a stick, it ain't Bluegrass"