Indie rock is difficult to define until you hear this record’s amalgam of influences, assembled crazy-quilt style. Big, boisterous metal drumbeats share space with thumping, rhythmic bass. Vocals — often unison — are another rhythm instrument, and of course there are lots of crazy tempo changes, because what would indie rock be without that? Were the Eagle a little cooler, they’d almost certainly be a Chicago band, sharing a bill with some of this city’s other caustic, oddball rhythmmakers. But Ferocious Eagle is from Portland, Ore. Make what you will of that.