** ADVANCE FOR WEEKEND EDITIONS, MARCH 9-12 **Leann Lohman, 35, dances a Polka with Robert Polenska at Art's Concertina bar Saturday, Jan. 28, 2006, in Milwaukee. A fragmented effort is under way in the polka community to make sure the dance doesn't die _ through festivals, use of more modern instruments like electric guitars and teaching it in elementary schools. (AP Photo/Morry Gash)