If it's Americana you're looking for, go here:
95.9 The Ranch and click the 'listen now' button.
Keep a pen and a pad of paper handy because you'll be writing down lots of artists and songs.
They're out of Dallas/Ft. Worth and the music they play on that station you'll never hear anywhere else.
95.9 is a Ft. Worth station, once you’re east of DNT they get overpowered by some stupid Spanish station. :/
But 95.3 The Range is another good one in the area, play a lot of similar stuff (less rock-ish than the Ranch).
And I’m pretty sure both stations have a playlist on their websites, so you can just scroll through everything they’ve played for weeks and pick a song at random.