Never mind Bright Balkan Morning's Steven Feld soundscape, which overdoes ambience, or Knitting Factory's wannabe Slavic Soul Party in Makedonia, which shortchanges chops. This Serbian-Roma horn band is where I hear the Balkan-style "participatory discrepancy" Charles Keil declares unrecordable—the "relaxed dynamism," the "semiconscious or unconscious slightly out of syncness." Father-and-son flugelhorn virtuoso-and-phenom trade perky theme statements and heartbreaking solos in an ensemble that hangs loose from the slack wire between chaos and expertise. Tuneful and jaunty when it's generic, miraculous and hilarious when it hits—or just misses—its groove. A MINUS