Conductor Kenneth Schermerhorn, who led the Nashville Symphony for 22 years and became a local icon of the cultural scene, has died at 75 after a brief battle with non-Hodgkins lymphoma. Schermerhorn is credited with helping to boost the orchestra out of bankruptcy years ago, and with driving it to new professional heights, including major recording contracts and an appearance at New York’s Carnegie Hall. The NSO’s new $120 million concert hall, now under construction in downtown Nashville, will be named for Schermerhorn.