“Mr. Jordan, 42, a well-respected, charismatic second-generation conductor who is music director of the Paris Opera and the Vienna Symphony, will succeed Franz Welser-Möst, who abruptly resigned in 2014. Mr. Welser-Möst was the most recent in a long line of eminent musicians who left the post early, whether by choice or not – a roster that includes Mahler, Richard Strauss and Herbert von Karajan.”