Our hills’ sound is the cat’s meow these days. It never goes out of style, but the old-time music, country and bluegrass sung in Virginia a century ago is sprouting anew in the 21st century. The Steep Canyon Rangers are new-millennium keepers of the flame. Listening to the Grammy-award winning North Carolina group is like going back in to the Appalachia of the 1920s. Members play clear and concise American bluegrass in the spirit of the Monroe Brothers with its human core intact. There is no electronic trickery involved in the making of their music: It is acoustic-based honesty with banjos, guitars, mandolins and fiddles to make flesh and bone sing and dance. The Steep Canyon Rangers bring their simple pleasures to the National on Saturday, Aug. 16. Charlottesville kindred spirits Chamomile and Whiskey open. Doors open at 7 p.m. Admission is $15-$30. the nationalva.com.