HARMONY, Minn; — Taxpayers in the Fillmore Central School District, which serves Harmony, Fountain and Preston, rejected a proposed 10-year budget plan to keep the district operating at current levels. The margin was almost 3-2 — 1,478 against and 1,053 for. The result will be larger classes, fewer programs and less convenient bus routes, according to referendum advocates. If approved, the referendum would have replaced the current $500 er student budget cap with a $1,250 cap.