Louis Langrée has two years left on his contract as music director of the Cincinnati Symphony Orchestra. But it’s not too early to start thinking about his own legacy as he begins his next-to-last season this weekend in Music Hall.
“I don’t think about penultimate, last or whatever,” said Langrée by phone last week from his home in Paris. “But what we have been together is something absolutely wonderful, and I’m very proud of what we have achieved together on many levels, artistic…