Fifty years after the death of a true iconoclast, the New York Philharmonic explores his range with "Charles Ives: An American Original in Context" (May 11-29; ). The Danbury, Connecticut, insurance salesman-composer blended jazz, ragtime, church hymns, folk songs, and spiky atonality, and you can hear it all in this absorbing mix of concerts by renowned artists, such as singer Audra McDonald and conductors Lorin Maazel and John Adams.