By his mid teens, he was playing in various Fort Worth-area clubs with artists such Robert Ealey, Ray Sharpe, Johnny Carroll, and Bubbles Cash.

[2] Buck moved to Austin in the mid-1970s and joined the blues rock group the Fabulous Thunderbirds, along with Keith Ferguson, Jimmie Vaughan, and Kim Wilson.

In addition to continuing to play with the LeRoi Brothers, Buck has performed and recorded with numerous notable artists over the years, including Roky Erickson, Screamin' Jay Hawkins (Jalacy Hawkins), Roy Head, Lazy Lester (Leslie Johnson), Toni Price, Ted Roddy, and Doug Sahm.

[2] In 1985, Buck appeared on the album Trash, Twang And Thunder, which featured various artists known collectively as Big Guitars From Texas.

The album track, "Guitar Army" ‒ featuring Buck, Frankie Camaro, Keith Ferguson, Denny Freeman, Evan Johns, and Jesse Taylor ‒ garnered a 1986 Grammy Award nomination for Best Rock Instrumental Performance.