With standing ovations, bouquets and rave reviews, Simon Rattle started his debut as chief conductor of the Berlin Philharmonic. He launched his 10-year tenure mixing tradition with Gustav Mahler's Fifth Symphony and future with a contemporary piece by the young composer Thomas Ades, receiving an enthusiastic welcome. At the end of Mahler's Fifth Symphony, the audience cheered the conductor, calling him back five times to bows. The new chief conductor performed a miracle of transparency and ecstasy, sharpness of tone and ambiguity.