Most musicians drive thousands of miles across the country, sleep in their cars, barely have enough money to eat and put everything on the line to perform night after night. Filmmaker Tom Weber did the same — only with a projector and screen instead of a guitar. Weber spent almost 10 years gathering material for his feature-length documentary, “Troubadour Blues,” which reveals the life of a well-traveled singer and songwriter. It features interviews and performances from such musicians as Peter Case, Mary Gauthier, Chris Smither, Dave Alvin and Slaid Cleaves. The film has screened at festivals such as Folk Alliance International, South by Southwest and the Americana Music Association. Ashland Coffee and Tea presents an exclusive preview of the film followed by a solo performance by Charles “King” Arthur, who was featured in the documentary accompanying Slaid Cleaves. Arthur has appeared frequently on the venue’s stage, either with artists such as Cleaves and Wayne Hancock, or playing in Virginia-based bands such as Chez Roué and Piedmont Souprize. The “Troubadour Blues” screening and Charles Arthur performance take place at Ashland Coffee and Tea on Wednesday, Dec. 5, at 7 p.m. $8. ashlandcoffeeandtea.com.