A lot of great songs on their list.   A few I could do without.  You can chase the link on the guitar and vote on the National Anthem of Texas (as anointed by Lone Star beer).

Boogie Back to Texas — Asleep at the Wheel
Miles and Miles of Texas — Asleep at the Wheel
Colors Are All the Same — Bill Pekar
San Antonio Rose — Bob Wills and the Texas Playboys
I’ve Been Everywhere (In Texas) — Brian Burns
Llano Estacado — Cooder Graw
Texas Time Travelin’ — Cory Morrow
That’s What I Like About Texas — Dale Watson
Way Down Texas Way — Dale Watson
Lone Star Blues — Delbert McClinton
Rolling Stone from Texas — Don Walser
Beautiful Texas Sunshine — Doug Sahm
Texas Me — Doug Sahm
Yellow Rose of Texas — Ernest Tubb
Waltz Across Texas — Ernest Tubb
Ay Te Dejo En San Antonio — Flaco Jimenez
London Homesick Blues — Gary P. Nunn
What I Like About Texas — Gary P. Nunn
I’m a Texan — Gary Stewart
Deep In the Heart of Texas — Gene Autry
Texas Cookin’ — Guy Clark
Down In Texas — Jerry Jeff Walker
Dallas — Joe Ely
Texas to You — Johnny Cooper
100% Texan — Kevin Fowler
West Texas Heaven — Kimmie Rhodes
God Blessed Texas — Little Texas
That’s Right (You’re Not from Texas) — Lyle Lovett
I-35 — Max Stalling
Beautiful Texas — Milton Brown and His Musical Brownies
Lone Star State of Mind — Nanci Griffith
Songs About Texas — Pat Green
Texas on My Mind — Pat Green
Texas in 1880 — Radney Foster
Screw You, We’re from Texas — Ray Wylie Hubbard
Amarillo Highway — Robert Earl Keen
Texas Morning — Rusty Wier
Come on Down to Texas — Steve Fromholz
Texas Flood — Stevie Ray Vaughan
Texas Moon — Stoney LaRue
Texas (When I Die) — Tanya Tucker
Gone to Texas — Terry Allen
Blue Yodel No. 1 (T for Texas) — The Outlaws
Good Texan — Vaughan Brothers
Luckenbach, Texas — Waylon Jennings
Texas in My Soul — Willie Nelson
Texas on a Saturday Night — Willie Nelson
Northeast Texas Women — Willis Alan Ramsey
La Grange — ZZ Top