Just down the street from the bright, big theater for Napa’s grownups is the dark, small pool hall for Napa’s kids. Billco’s Billiards has been a mainstay of the all-ages Napa underground for years, and its longevity is a blessing in a town geared for the 21-plus crowd. With no stage and naught but a brass banister separating crowd from band, the atmosphere at Billco’s is intimate and tight-knit. This week, the Santa Rosa band Snipers play with Napa locals Ove the Garden and Defying Truth on Thursday, Feb. 18, at Billco’s Billiards. 1234 Third St., Napa. 8:30pm. Free. 707.226.7506.