The Caribou Choral Society begins rehearsing for its holiday concerts on Tuesday, Sept. 18, at 7 p.m. in the basement of Holy Rosary Church in Caribou. All local singers interested in singing advanced four-part music are encouraged to join. Rehearsals are held each Tuesday night, with concerts scheduled for Dec. 2 in Grand Isle, Dec. 7 in Presque Isle, and Dec. 8 in Caribou. FMI, contact Dan Ladner at danladner@maine.rr.com.