WBRF Galax VA is an FM with a monster signal and plenty of fans in small towns and even online, and lots of commercials for businesses in the larger towns that tend to have less than 10,000 people. It does reach some people in several of the larger markets. Most of the songs are from the 70s and 80s, with some 60s and 90s and even occasionally 50s and the new millennium.
And yet the DJ played a request from 1945, "Roly Poly" by Bob Wills, Tommy Duncan (I think that's the name) and the Texas Playboys. And he said, "That's my kind of music."