The dizzyingly inventive duo of Matthew and Eleanor Friedberger, the Fiery Furnaces began adding a dose of the unexpected to indie rock in the 2000s. The Friedberger siblings introduced their gleeful genre-mashing with 2003's Gallowsbird's Bark, which mixed simple, poppy melodies with a dizzying array of wordplay and influences that included the Who, Captain Beefheart, and Os Mutantes as well as dashes of folk, blues, and garage rock. The duo grew even more audacious and ambitious on the following year's Blueberry Boat, a sprawling, psych- and prog-tinged epic that provoked lo...