So far Rook's standout track is "Rooks," which mixes ex-Okkervil Riverer Jonathan Meiburg's melancholic, bookish tendencies into a tight, elegant nugget. "Leviathan, Bound," which follows "Rooks" on the album, also follows in the general stylistic path as its predecessor, though it's more fragile, less robust, and lacks as strong an initial hook. Give it time, though, figure out the hunter/hunted ...