Trumpeter Ruffins may be the world's most rambunctious librarian. That's because the body of literature he tends to is New Orleans jazz -- a genre that begins with Louis Armstrong, but also includes the second-line stomp heard in the town now (and seen on HBO's Treme, on which Ruffins appears). You don't come to him for the unexpected; you come, as this title suggests, to party. And he delivers: "Treme Second Line" belongs at your next throw-down, while "Chinatown, My Chinatown" has plenty of oomph (even the banjo). The slower jams can't always compete on energy, but the joyous verve remains.