Shaped by the vibes of Sigur Ros and Mew, Northern Valentine’s dreamy soundscapes tactfully prove that less is more. Fronted by Robert and Amy Brown, this deliciously ambient four-piece have shared their post-rock from classrooms to clubs and even churches. Firm believers in the idea that “no venue is too large or too small,” their’08 Icelandic tour marked the first musical performance in Viðeyjarkirkja since 1774. Less sinking than Mogwai’s The Hawk Is Howling, The Browns’ and their bandmates’ instrumentation is sweeping with buzzing transitions and delicate licks of guitar. Atmospheric, tracks like “Sleeping Weapons” swell in fullness, each riff creating an arch in theme and sound. Undoubtedly cerebral, yet full of heart, Northern Valentine create a middle ground between concrete and abstract, crafting a soundtrack that leaves listeners room for their own interpretation. M Room, 15 W. Girard Ave., 8 pm, $8, 21+ – Dianca Potts