Review: Michael Tilson Thomas, a Podium Hero, Returns

In early August, the conductor Michael Tilson Thomas announced that, following surgery to remove a brain tumor, he was withdrawing from his upcoming performances to receive treatment. “I look forward,” he said, “to seeing everyone again in November.”

Even coming from such an indefatigable musician, still dynamic at 76, that promise seemed optimistic.

But on Thursday at Alice Tully Hall, looking a little weather-beaten but still vigorous and bright-eyed, Thomas took the podium to lead the New York Philharmonic in inspiring performances of demanding works by Ruth Crawford Seeger, Berg and Beethoven.

This was his first public performance since his announcement, as well as his first time with the Philharmonic in 10 years, and he was clearly determined not to miss it. He is scheduled to lead two upcoming programs with the San Francisco Symphony, where he ended a quarter-century tenure as music director last year. But returning to the Philharmonic at this difficult time was very meaningful, he said in a short video released this week.

What moved me most about the video was that Thomas said nothing directly about his illness. Instead, ever the educator — the best explainer of music to general audiences since his mentor, Leonard Bernstein — he shared keen insights into the works he was offering. He kept it all about the music.