Michael Tilson Thomas, the charismatic American conductor, composer and educator who transformed the San Francisco Symphony into a global force, championed contemporary and American music, and reached new audiences via television and digital channels, has died aged 81.

Tilson Thomas died at home on April 22, 2026, surrounded by family and friends, according to a statement released by his representatives. He had been diagnosed in 2021 with glioblastoma multiforme, an aggressive form of brain cancer. Through his illness, he continued to perform, compose and communicate with audiences.

Michael Tilson Thomas. Photo © Art Streiber

For more than five decades, Tilson Thomas stood among the most influential figures in classical music. A conductor of electric energy and intellectual curiosity, he combined a deep respect for the symphonic tradition with an evangelical commitment to new music, education and outreach.

Born in Los Angeles on December 21, 1944, he studied conducting and composition with Ingolf Dahl at the University of Southern California. Early in his career he worked with towering 20th-century figures including Igor Stravinsky and Aaron Copland, formative encounters that helped shape his advocacy for modern American composers.

His international breakthrough came in 1969 when, aged just 24, he stepped in at short notice for an indisposed William Steinberg to conduct the Boston Symphony Orchestra. He was soon appointed assistant conductor and later principal guest conductor. Subsequent posts included music director of the Buffalo Philharmonic, principal guest conductor of the Los Angeles Philharmonic and principal conductor of the London Symphony Orchestra.

But it was in San Francisco that Tilson Thomas made his most enduring mark. Appointed music director of the San Francisco Symphony in 1995, he led the orchestra for 25 years, raising its international profile through adventurous programming, acclaimed recordings and tours. Under his leadership, the orchestra became synonymous with performances of Mahler, Stravinsky and American masters, while also embracing living composers and ambitious multimedia projects.

Michael Tilson Thomas. Photo © Kristen Loken

He won 12 Grammy Awards across a distinguished discography of more than 120 recordings.
Tilson Thomas was also a passionate teacher. In 1987 he co-founded the New World Symphony in Miami Beach, a postgraduate training orchestra designed to prepare young musicians for professional careers and leadership roles. More than 1,200 fellows passed through the academy, many going on to major appointments around the world.

His gift for communication extended beyond the concert hall. He hosted television series for the BBC and PBS, revived the spirit of the New York Philharmonic’s Young People’s Concerts, and became one of the rare maestros to feel entirely at ease on camera.

That instinct for innovation was vividly demonstrated in Sydney in 2011, when he conducted the YouTube Symphony Orchestra at the Sydney Opera House. The project assembled 101 musicians from 33 countries selected through online auditions and community voting, culminating in a globally livestreamed concert that fused standard repertoire with new media spectacle. It was a landmark attempt to connect the centuries-old orchestral tradition with the digital age, and Tilson Thomas was its ideal ambassador.

Alongside conducting, he maintained an active career as a composer. His works included From the Diary of Anne Frank, premiered with Audrey Hepburn as narrator, and Meditations on Rilke. In 2023, pianist Yuja Wang and conductor Teddy Abrams recorded his You Come Here Often?, which won a Grammy Award.

Honours flowed throughout his career. He was named an Officier de l’Ordre des Arts et des Lettres of France, received the US National Medal of Arts, and was a Kennedy Center Honoree in 2019.

Even after his cancer diagnosis, Tilson Thomas continued to work when able, writing in 2021 that “life is precious” and that creating music remained central to his being.