Depending on who you ask, Autechre have spent nearly two decades either pushing relentlessly forward into unexplored frontiers of electronic music or camping out in the hinterlands between extant genres—industrial, hiphop, techno—adopting and adapting as they go. Their trajectory from one release to the next is often baffling, though their latest, Quaristice, is as easy an introduction to their music as they've ever recorded. Live, they re-create their deeply composed computer music using live drum machines and synths. With Massonix and Rob Hall. (Neumo's, 925 E Pike St, 709-9467. 8 pm, $15, 21+.)

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