Any band that claims “microtones” are part of its musical blueprint is just asking for the Pomposity Test, which generally can be pared down to one question: All intellectualizing aside, is the music fun to listen to when you’re not high? Vienna, Austria, trio Radian, remarkably, passes the test with only one minor caveat: It helps to have heard some postrock before. Tortoise drummer John McEntire recorded and mixed the band’s last two discs, and the Chicagoan flexed his knack for headphone-friendly spatial depth. The records sound nonlinear at first, but after a while it’s clear that the abstract synth tones, careful bass notes, and thoughtful percussion are heading in the same direction—toward the border between something and nothing: Where a less talented band of eggheads would flirt with nothing, Radian almost always finds something. The band plays with Machine Drum, Band of the Name, and H8 at 8:30 p.m. at the Warehouse Next Door, 1017 7th St. NW. $8. (202) 783-3933. (Joe Warminsky)