Charles Dutoit turned the Montreal Symphony into an exceptional instrument. But he made an abrupt departure four years ago. “Since Dutoit’s abrupt exit, the OSM has endured a series of setbacks: The organization has struggled with persistent deficits and a crippling players’ strike that lasted for five months. There have been no new discs in the last four years, and the orchestra won’t be making its annual pilgrimage to Carnegie Hall next season. Dutoit, on the other hand, hasn’t missed a beat.”