"In the Texas issue, I really wanted to focus on it being a place of origin," Oxford music editor Rick Clark tells NPR's Scott Simon. "I wanted most all of the music to be recorded by artists, musicians, from Texas, and I wanted a very strong sense of place. ... The interesting thing about Texas is that, to this day, you can hear just about anything that emanates from that state, and you can put a finger on a map. And you can't say that about a lot of things, you know?"
Hear the full segment at the audio link, including Clark's rundown of several songs included on the CD.