Monday, July 17

David Vail makes music in the tradition of outsider artists like Daniel Johnston and Portland’s own Dan Knudsen. He performs tonight at One Longfellow Square (181 State St., Portland) to celebrate the release of his heartfelt and heroic debut album, Unvailed, with local rock luminary Dominic Lavoie opening at 7 p.m. Tix: $7 (all ages). 761-1751. onelongfellowsquare.com.