Beethoven moved to the village of Heiligenstadt—a quiet place a few miles north of Vienna—in the spring of 1802, on the recommendation of his physician Johann Adam Schmidt, who thought the quiet and the fresh air might benefit his hearing. The move did not help. By October, Beethoven was writing his brothers a letter that mixed practical instructions about his estate with passages of profound anguish.
He described standing near a brook and hearing a shepherd playing a flute in the distance. Everyone else present could hear it. He could not. He described the social humiliation of failing to hear sounds that others heard, of being unable to follow conversations, of having to ask people to repeat themselves when in company and having them conclude that he was simply inattentive. He described the danger this posed to his career: a performer who could not hear was a professional liability, and he had been concealing his condition for years to preserve the income and reputation on which he depended.
And then he wrote something that anticipated the 2023 study with a specificity that researchers found striking. He asked that after his death, if possible, Dr. Schmidt should describe his illness and provide it to the world—that his suffering, whatever its cause, should be identified and made known. He framed this as his wish. He was asking for the kind of posthumous medical investigation that, nearly two hundred years later, a team of genomic scientists attempted to conduct.
Beethoven survived the Heiligenstadt crisis. He did not send the letter. He went back to Vienna. And in the years that followed the Heiligenstadt Testament, he composed some of the most consequential music in the Western repertoire: the “Eroica” Symphony, the Fifth Symphony, the opera Fidelio, the Razumovsky Quartets, the “Emperor” Piano Concerto. Music historians have described the compositional period that followed his Heiligenstadt despair as a turn toward a more heroic, defiant aesthetic—as though the confrontation with his condition and the decision to press forward despite it had changed not just his emotional state but his artistic approach.