Finnish conductor Osmo Vänskä has signed a four-year contract extension with the Minnesota Orchestra, which will keep him in Minneapolis through the 2010-11 season. In his two years as music director, Vänskä has considerably expanded the orchestra’s national and international reputation, leading it on a high-profile tour of Europe and embarking on a project to record the complete cycle of Beethoven symphonies. Vänskä’s name has recently been popping up on the wish lists of other top orchestras in more glamorous cities, which spurred the Minnesota management to pursue the extension.