The Fiery Furnaces will never play your favorite song live. The duo of siblings Eleanor and Matthew Friedberger (plus road band) reformat their catalog for every tour, rendering each song virtually unrecognizable, alternately confusing or delighting audiences. On this two-disc mash-up of various live shows, it mostly overwhelms. Early on, “Blueberry Boat” cycles through mutant organ groans, chopsticks, electric piano, and guitar chug-a-chug. Adeptly recorded both through the board and from the audience, Remember is a microcosm of the band’s career — an ambitious mess.