Jennifer Koh’s Battle: How a Violin Virtuoso Faced a Rare Illness—And Kept Playing for New York

On a rainy Tuesday evening at Lincoln Center earlier this month, the audience held its breath as Jennifer Koh lifted her violin, letting the first notes of Bartók shimmer through the hall. Few in the crowd knew that behind that poised stage presence was a decade-long struggle with a rare neurological disorder—one that nearly silenced one of New York’s most daring performers.

Koh, a fixture on Manhattan’s classical music circuit, has spent the past ten years quietly consulting neurologists from Lenox Hill to Columbia Presbyterian, searching for answers as muscle weakness and unpredictable tremors threatened her career. Even as she juggled experimental treatments and relentless fatigue, her performance calendar never emptied. Just last spring, she premiered a contemporary concerto in Brooklyn—her left hand visibly trembling between movements, but her tone unshaken.

The disorder, still unnamed by her doctors, targets the fine motor control essential to violin playing. Koh describes hours spent relearning basic fingerings in her Upper West Side apartment, sometimes playing the same phrase hundreds of times before it felt right. “There were days I couldn’t hold my bow,” she admitted in an interview this week, tracing the arc of her recovery as the city itself emerged from its own seasons of uncertainty.

Through it all, New York’s music community rallied. Fellow musicians stepped in for challenging passages during rehearsals, and venues like the 92nd Street Y adjusted schedules to accommodate her fluctuating energy. In the coming weeks, Koh is set to return to Carnegie Hall, determined to share both her music and the hard-won vulnerability behind it.

For New Yorkers—onstage and off—Koh’s story rings familiar: a reminder that resilience isn’t always loud, and that sometimes, the city’s most stirring performances happen far from the spotlight.