Roland White, it can be safely said, wrote the book on bluegrass mandolin (Roland White’s Approach To Bluegrass Mandolin). The founder (along with his late brother Clarence) of the Kentucky Colonels, White still teaches mandolin and guitar in Nashville to the next generation of players. He’s worked in bands lead by Bill Monroe and Lester Flatt (and even appeared on the Andy Griffith show) and for the last 25 years played in ensembles at the vanguard of new directions in bluegrass. The Roland White Band, a four piece who earned a Grammy nomination for their recent CD Jelly on My Tofu, stops in Chapel Hill Saturday for a set of vintage traditionals and swinging originals as part of the Community Church’s Coffeehouse Series. Tickets are $15 in advance and $17 at the door. Call 942-1775 for more information or