If you want bluegrass, country, and Americana music, the real thing, WDVX.com from East Tennessee is by far America's best radio station. Just click on "Media Player" for the music. WDVX is a non-commercial station funded by its listeners, so you might want to send them a few bucks. Every weekday at noon Eastern US time, which is 6 PM Spanish time, they have a live concert by an up-and-coming artist. This is worth tuning in to; occasionally it's bad, but usually it's very good. Non-Americans will enjoy the disc jockeys' Highland Southern accents.
WDVX broadcasts on several different frequencies out of several different Tennessee cities; one of them is Instapundit's Knoxville, and another one is Sevierville, where my siblings-in-law Kerry and Brenda (is my brother-in-law's brother my brother-in-law, too? I think so) live. Sevierville is right next to the Great Smoky Mountains national park, America's most-visited, probably because it's the closest national park to the big Eastern cities. It's beautiful up there, though the tourist-trap towns of Gatlinburg and Pigeon Forge are best avoided unless you're going to see a band play at one of the many venues there.