World-renowned Israeli pianist-conductor Daniel Barenboim is Jill Pasternak's guest this week on Crossover. One of the most versatile pianists of his generation, Barenboim has collaborated with violinists Itzhak Perlman and Pinchas Zukerman, as well as his late wife, British cellist Jacqueline du Pr. In January 2008, his virtuosic musicianship was recognized with a Royal Philharmonic Society Gold Medal, one of the most prestigious honors in classical music.