Last night PBS had a program called Nashville 2.0. It was about music called Americana. A blend or amalgamation of country, bluegrass, some rock, folk, blues. Really good and the players were by in large young. Emmylou Harris started this years ago. Jerry Douglas was there. He's the dobro player that can take your breath away. He played with Union Station and did some work with Allison Krauss (my all time favorite country female singer).
If you are a fan of Austin City Limits they usually have some Americana performers