Every now and then I enjoy listening to recordings from the Nitty Gritty Dirt Band's Will the Circle be Unbroken. The first historic recording was made in 1972 featuring old time country and bluegrass artists playing with the younger generation of musicians. Two more collaborative albums ensued over the years. It has been a wonderful way to preserve authentic acoustic music born of simple hard-working lives in an era that rewards mostly slick commercial productions.
One of my favorite numbers from Will the Circle Be Unbroken, Vol. III is "The Lowlands," featuring Jaime Hanna and Jonathon McEuen.