The History of Sound (2025) does not feature transsexual characters or themes. The film's narrative focuses on the romantic and emotional connection between two cisgender men, Lionel and David, exploring love, music, loss, and memory. There is no depiction of transgender or transsexual identities or experiences within the story.

The movie does not contain any action or adventure elements.

The film adapts Ben Shattuck's short stories, depicting two male protagonists, Lionel Worthing and David White, consistent with their original canonical genders. No characters are indicated to have a different on-screen gender from their established source material or historical record.

The film's protagonists, Lionel and David, are implied to be white Americans of European descent in the source material and historical context. Paul Mescal and Josh O’Connor, both white actors, are consistent with this implied background. No characters established as one race are portrayed as a different race.