Michael Tilson Thomas, conductor who reshaped San Francisco Symphony, dies at 81

Michael Tilson Thomas, the influential American conductor, pianist and composer who transformed the San Francisco Symphony, co-founded the New World Symphony and helped broaden classical music audiences through education and media projects, died April 22 at his home in San Francisco. He was 81.

The cause was glioblastoma multiforme, an aggressive brain cancer, according to major news reports citing his publicist. On Friday, the National Endowment for the Arts issued a statement recognizing the death of Tilson Thomas, a 2009 National Medal of Arts recipient.

Tilson Thomas was one of the most prominent American classical musicians of his generation, known not only for leading major orchestras but for building institutions that shaped how music was performed, taught and heard. He served as music director of the San Francisco Symphony from 1995 to 2020, the longest tenure in the orchestra’s history, and later was named music director laureate. In 1987, he co-founded the New World Symphony, a postgraduate orchestral academy for young musicians, and led it for decades.

Those two institutions became the twin pillars of his public legacy. In San Francisco, he helped define the orchestra’s modern identity and expanded its reach at home and abroad. Over a 52-year relationship with the orchestra, he led nearly 1,800 concerts with the ensemble, according to San Francisco Symphony-related materials.

At the New World Symphony, based in Miami Beach, Florida, Tilson Thomas helped create a training ground for young musicians moving from conservatory study into professional orchestral careers. The academy became an influential pathway into the classical music world, extending his impact far beyond the concert hall podium.

He was also known for programming that pushed against a narrow definition of the repertory. The NEA said he paired composers such as John Cage and Lou Harrison with staples including Beethoven and Brahms, reflecting a career-long commitment to placing the classical canon alongside newer or less conventional music.

Tilson Thomas also devoted substantial energy to public education. He was a leading force behind Keeping Score, the San Francisco Symphony’s television project aimed at widening appreciation of classical music for general audiences. His work in music education and public media earned him a Peabody Award.

Federal recognition of his career came with the National Medal of Arts, the highest U.S. government honor for artistic excellence. The NEA identified Tilson Thomas as a 2009 recipient; his medal was presented at a White House ceremony in 2010.

His other honors included 12 Grammy Awards, a Kennedy Center Honor in 2019, appointment as an Officier de l’Ordre des Arts et des Lettres of France in 2020 and Gramophone’s Lifetime Achievement Award in 2024. Taken together, the awards reflected the breadth of a career that spanned performance, recording, education and cultural leadership.

In the final years of his life, Tilson Thomas spoke publicly about serious illness. He underwent brain surgery in 2021 and disclosed in 2022 that he had been diagnosed with glioblastoma. In February 2025, he announced that the cancer had returned. His final public concert, also billed as an 80th-birthday concert, came on April 26, 2025, with the San Francisco Symphony.

His official website announced the death in a brief statement: “It is with deep sadness that we let you know of Michael Tilson Thomas’s passing on April 22, 2026.”

In a 2013 interview cited by the NEA in its statement Friday, Tilson Thomas described what music had meant to him since childhood: “I think there was a kind of truth in the music that really affected me from the time I was a very little boy. I was aware when people spoke to one another, they sometimes said words, but perhaps they didn't mean the words quite as sincerely as they wished they did…But in music, it was the absolute truth.”