The letter itself is an extraordinary document—urgent, passionate, fragmented by the uncertainties of travel and postal delivery, written across two days from a town Beethoven had traveled to for a cure. “Angel, my all, my very self,” it begins. It describes longing, describes obstacles to their being together, expresses both hope and despair. It was not sent. Like the Heiligenstadt Testament, it was found in a locked drawer among his effects.
These documents—the unsent letters—are windows into a person who apparently found it easier to express his most intense feelings in writing that he never intended anyone to see. Whether this was a common nineteenth-century psychological pattern, a function of his particular reserve, or something about the specific relationships involved is impossible to say with certainty. What is clear is that the letters reveal a person of considerable emotional depth and complexity, capable of intense feeling and equally capable of keeping that feeling locked away.
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## The Hearing Loss and the Creative Adaptation
The question of how Beethoven’s deafness interacted with his composing process is one of the most discussed topics in music scholarship, and it is one on which the 2023 genomic study cast no light—as the researchers themselves acknowledged.
What the genomic study did confirm was that there is no currently identified genetic variant that clearly accounts for the hearing loss. This negative finding has implications for how the question should be approached going forward. The absence of a clear genetic explanation does not mean there is no genetic component—future research may identify relevant variants—but it does suggest that the hearing loss may have had primarily non-genetic causes, or that the genetic contribution was from variants not yet catalogued in the databases used by the study.