If you draw inspiration from a wide variety of eclectic sources — say, as wide as from speculative fiction author Ursula K. Le Guin to surrealist painter Edward Hopper — and then turn them into sound, you’d come up with of Montreal’s “Blab Sabbath Lathe of Maiden.” It’s like taking a sonorous, mind-boggling rollercoaster ride with Stereolab and T.Rex.