There is particular feeling that “Song for Next Summer” wields with its circling acoustic guitar. At first, the smooth pattern opens the mind reaching at the core of one’s thoughts, but no force is needed to enter. The clean riff carefully and consciously weaves it way from the outside toward the center and all the while Meg Baird’s angelic voice provides such a calming force that the advance becomes part of the scene and isn’t characterized as an invasion. It is rather welcomed like an old friend. Baird’s music showcases deep authentic folk roots yet also follows its own path. Each song is a map and a journey where the territory has a familiar landscape, but Baird may take you somewhere you’ve never been. Matched with indie darling Sharon Van Etten (who many Deli NYC readers should know intimately) tonight at Union Transfer, the combination will surely move even the most jaded hipster. Union Transfer, 1026 Spring Garden St., 8pm, $15, All Ages (Photo by Cat Stevens) – Michael Colavita