A new documentary charts the rise of Metropolitan Opera Music Director Yannick Nézet-Séguin from a school stage to chief conductor at one of the world’s great opera houses.

A former recording executive and television producer, Gelb was hired by then-Met Chairwoman Beverly Sills in October 2004 to take over two seasons later.

Gelb said the season that ended Saturday saw 69 percent of box office revenue capacity realized, up from 67 percent in each of the previous two seasons and a low of 66 percent in 2015-16.

The Philadelphia Orchestra’s music director has gone to the dogs. And the cats.

The Metropolitan Opera will hire an all-black outside chorus next season for its first presentation in nearly three decades of the Gershwins’ “Porgy and Bess.”