FOR DEC 24 ATC Imagine you're a celebrity musician. New cars, nice clothes, fans stopping you on the street for autographs. Then, war changes everything. You're forced to leave your homeland with little more than the clothes on your back, and you end up in Minnesota working at a bakery. That in a nutshell is the story of Alexsander Pavolic (PAV low vick). Minnesota Public Radio's Dan Olson has more. audio . . . ambience Pavlovic family smiles as bright as light bulbs greet visitors to the their small apartment in Brooklyn Center. Coffee is served, there's a little conversation. But Alexsander is straining at the bit like a race horse. He is happiest when his fingers are racing over his